Doubling on IGWT
492 listed varieties show doubling here, across several series and dates. That is worth knowing before you get excited about one coin: a device that doubles often is a device where doubling is common, and where machine doubling imitates it most convincingly.
| Designation | Series | Class |
|---|---|---|
| 1917-P DDO-001 | Lincoln Cent | V pivoted hub doubling |
| 1929-D DDO-001 | Lincoln Cent | V pivoted hub doubling |
| 1930-S DDO-001 | Lincoln Cent | V pivoted hub doubling |
| 1935-P DDO-001 | Lincoln Cent | V pivoted hub doubling |
| 1936-P DDO-001 | Lincoln Cent | IV offset hub doubling |
| 1936-P DDO-003 | Lincoln Cent | V pivoted hub doubling |
| 1938-P DDO-003 | Lincoln Cent | VI distended hub doubling |
| 1941-P DDO-001 | Lincoln Cent | I rotated hub doubling |
| 1942-P DDO-004 | Lincoln Cent | V pivoted hub doubling |
| 1942-S DDO-002 | Lincoln Cent | IV offset hub doubling |
| 1943-P DDO-001 | Lincoln Cent | VI distended hub doubling |
| 1944-D DDO-006 | Lincoln Cent | VI distended hub doubling |
| 1945-P DDO-001 | Lincoln Cent | VI distended hub doubling |
| 1945-D DDO-001 | Lincoln Cent | VI distended hub doubling |
| 1947-P DDO-001 | Lincoln Cent | I rotated hub doubling |
| 1948-S DDO-003 | Lincoln Cent | VI distended hub doubling |
| 1951-D DDO-001 | Lincoln Cent | V pivoted hub doubling |
| 1955-P DDO-001 | Lincoln Cent | I rotated hub doubling |
| 1957-P DDO-001 | Lincoln Cent | VI distended hub doubling |
| 1957-P DDO-002 | Lincoln Cent | VI distended hub doubling |
| 1958-P DDO-001 | Lincoln Cent | I rotated hub doubling |
| 1959-D DDO-001 | Lincoln Cent | VI distended hub doubling |
| 1960-D DDO-002 | Lincoln Cent | I rotated hub doubling |
| 1966-P DDO-001 | Lincoln Cent | V pivoted hub doubling |
| 1968-S Pr DDO-005 | Lincoln Cent | II distorted hub doubling |
| 1969-S DDO-001 | Lincoln Cent | I rotated hub doubling |
| 1970-P DDO-001 | Lincoln Cent | I rotated hub doubling |
| 1970-P DDO-003 | Lincoln Cent | V pivoted hub doubling |
| 1970-P DDO-008 | Lincoln Cent | V pivoted hub doubling |
| 1970-D DDO-008 | Lincoln Cent | I rotated hub doubling |
| 1970-D DDO-009 | Lincoln Cent | I rotated hub doubling |
| 1970-S DDO-001 | Lincoln Cent | I rotated hub doubling |
| 1970-S DDO-002 | Lincoln Cent | I rotated hub doubling |
| 1970-S Pr DDO-003 | Lincoln Cent | III design hub doubling |
| 1970-S DDO-025 | Lincoln Cent | I rotated hub doubling |
| 1971-P DDO-002 | Lincoln Cent | I rotated hub doubling |
| 1971-P DDO-003 | Lincoln Cent | I rotated hub doubling |
| 1971-P DDO-004 | Lincoln Cent | I rotated hub doubling |
| 1971-D DDO-001 | Lincoln Cent | I rotated hub doubling |
| 1971-S Pr DDO-001 | Lincoln Cent | II distorted hub doubling |
| 1971-S Pr DDO-004 | Lincoln Cent | V pivoted hub doubling |
| 1972-P DDO-001 | Lincoln Cent | I rotated hub doubling |
| 1972-P DDO-002 | Lincoln Cent | I rotated hub doubling |
| 1972-D DDO-001 | Lincoln Cent | I rotated hub doubling |
| 1972-D DDO-002 | Lincoln Cent | I rotated hub doubling |
| 1972-D DDO-003 | Lincoln Cent | I rotated hub doubling |
| 1972-D DDO-004 | Lincoln Cent | I rotated hub doubling |
| 1972-S DDO-001 | Lincoln Cent | I rotated hub doubling |
| 1972-S DDO-002 | Lincoln Cent | V pivoted hub doubling |
| 1972-S DDO-005 | Lincoln Cent | I rotated hub doubling |
| 1973-P DDO-001 | Lincoln Cent | V pivoted hub doubling |
| 1976-P DDO-001 | Lincoln Cent | VI distended hub doubling |
| 1978-P DDO-001 | Lincoln Cent | VI distended hub doubling |
| 1982-P DDO-001 | Lincoln Cent | V pivoted hub doubling |
| 1983-P DDO-009 | Lincoln Cent | V pivoted hub doubling |
| 1984-P DDO-002 | Lincoln Cent | II distorted hub doubling |
| 1985-P DDO-001 | Lincoln Cent | II distorted hub doubling |
| 1988-P DDO-001 | Lincoln Cent | II distorted hub doubling |
| 1995-P DDO-001 | Lincoln Cent | V pivoted hub doubling |
| 1995-P DDO-002 | Lincoln Cent | V pivoted hub doubling |
| 1995-D DDO-003 | Lincoln Cent | V pivoted hub doubling |
| 1996-D DDO-001 | Lincoln Cent | V pivoted hub doubling |
| 1970-S Pr DDO-012 | Lincoln Cent | II distorted hub doubling |
| 2006-P DDO-003 | Lincoln Cent | IV+VIII |
| 2007-P DDO-002 | Lincoln Cent | VI distended hub doubling |
| 1931-D DDO-001 | Mercury Dime | II distorted hub doubling |
| 1931-S DDO-001 | Mercury Dime | II distorted hub doubling |
| 1935-P DDO-001 | Mercury Dime | II distorted hub doubling |
| 1936-P DDO-001 | Mercury Dime | I rotated hub doubling |
| 1936-P DDO-003 | Mercury Dime | II distorted hub doubling |
| 1944-D DDO-001 | Mercury Dime | VI distended hub doubling |
| 1946-P DDO-003 | Roosevelt Dime | II distorted hub doubling |
| 1946-P DDO-004 | Roosevelt Dime | V pivoted hub doubling |
| 1946-P DDO-005 | Roosevelt Dime | II distorted hub doubling |
| 1946-P DDO-008 | Roosevelt Dime | V pivoted hub doubling |
| 1946-P DDO-012 | Roosevelt Dime | V pivoted hub doubling |
| 1946-P DDO-017 | Roosevelt Dime | IV+VIII |
| 1946-P DDO-019 | Roosevelt Dime | II distorted hub doubling |
| 1946-P DDO-020 | Roosevelt Dime | II distorted hub doubling |
| 1946-P DDO-026 | Roosevelt Dime | V pivoted hub doubling |
| 1946-D DDO-007 | Roosevelt Dime | V pivoted hub doubling |
| 1946-D DDO-009 | Roosevelt Dime | V pivoted hub doubling |
| 1946-D DDO-010 | Roosevelt Dime | II distorted hub doubling |
| 1946-D DDO-013 | Roosevelt Dime | IV+VIII |
| 1946-D DDO-016 | Roosevelt Dime | IV+VIII |
| 1946-D DDO-017 | Roosevelt Dime | II distorted hub doubling |
| 1946-S DDO-007 | Roosevelt Dime | II distorted hub doubling |
| 1947-P DDO-001 | Roosevelt Dime | II distorted hub doubling |
| 1947-P DDO-002 | Roosevelt Dime | II distorted hub doubling |
| 1950-P DDO-001 | Roosevelt Dime | V pivoted hub doubling |
| 1954-P Pr DDO-001 | Roosevelt Dime | VI distended hub doubling |
| 1960-P Pr DDO-001 | Roosevelt Dime | II distorted hub doubling |
| 1960-P Pr DDO-004 | Roosevelt Dime | IV+VIII |
| 1963-P DDO-002 | Roosevelt Dime | II distorted hub doubling |
| 1964-P DDO-004 | Roosevelt Dime | V pivoted hub doubling |
| 1968-S Pr DDO-008 | Roosevelt Dime | I rotated hub doubling |
| 1946-D DDR-002 | Roosevelt Dime | II distorted hub doubling |
| 1964-P Pr DDR-005 | Roosevelt Dime | V pivoted hub doubling |
| 1934-P DDO-001 | Washington Quarter | I rotated hub doubling |
| 1934-P DDO-002 | Washington Quarter | I rotated hub doubling |
| 1934-P DDO-003 | Washington Quarter | I rotated hub doubling |
| 1935-P DDO-002 | Washington Quarter | II distorted hub doubling |
| 1936-P DDO-001 | Washington Quarter | I rotated hub doubling |
| 1936-P DDO-007 | Washington Quarter | V pivoted hub doubling |
| 1937-P DDO-001 | Washington Quarter | V pivoted hub doubling |
| 1937-P DDO-004 | Washington Quarter | V pivoted hub doubling |
| 1939-P DDO-001 | Washington Quarter | V pivoted hub doubling |
| 1939-P DDO-004 | Washington Quarter | V pivoted hub doubling |
| 1939-P DDO-006 | Washington Quarter | V pivoted hub doubling |
| 1939-D DDO-001 | Washington Quarter | V pivoted hub doubling |
| 1939-S DDO-001 | Washington Quarter | V pivoted hub doubling |
| 1939-S DDO-002 | Washington Quarter | V pivoted hub doubling |
| 1940-P DDO-003 | Washington Quarter | V pivoted hub doubling |
| 1940-P DDO-006 | Washington Quarter | II distorted hub doubling |
| 1940-D DDO-002 | Washington Quarter | II distorted hub doubling |
| 1941-P DDO-003 | Washington Quarter | V pivoted hub doubling |
| 1941-P DDO-004 | Washington Quarter | II distorted hub doubling |
| 1941-P DDO-008 | Washington Quarter | V pivoted hub doubling |
| 1942-P DDO-003 | Washington Quarter | V pivoted hub doubling |
| 1942-P DDO-005 | Washington Quarter | V pivoted hub doubling |
| 1942-D DDO-001 | Washington Quarter | I rotated hub doubling |
| 1943-P DDO-001 | Washington Quarter | I rotated hub doubling |
| 1943-P DDO-007 | Washington Quarter | II distorted hub doubling |
| 1943-P DDO-009 | Washington Quarter | I rotated hub doubling |
| 1943-P DDO-010 | Washington Quarter | II distorted hub doubling |
| 1943-P DDO-011 | Washington Quarter | I rotated hub doubling |
| 1943-S DDO-001 | Washington Quarter | I rotated hub doubling |
| 1943-S DDO-002 | Washington Quarter | V pivoted hub doubling |
| 1943-S DDO-006 | Washington Quarter | V pivoted hub doubling |
| 1944-P DDO-002 | Washington Quarter | V pivoted hub doubling |
| 1944-P DDO-003 | Washington Quarter | V pivoted hub doubling |
| 1944-P DDO-004 | Washington Quarter | I rotated hub doubling |
| 1944-D DDO-001 | Washington Quarter | V pivoted hub doubling |
| 1944-D DDO-002 | Washington Quarter | I rotated hub doubling |
| 1944-D DDO-003 | Washington Quarter | II distorted hub doubling |
| 1944-D DDO-004 | Washington Quarter | V pivoted hub doubling |
| 1944-S DDO-001 | Washington Quarter | I rotated hub doubling |
| 1945-P DDO-001 | Washington Quarter | I rotated hub doubling |
| 1945-P DDO-003 | Washington Quarter | II distorted hub doubling |
| 1945-P DDO-004 | Washington Quarter | V pivoted hub doubling |
| 1945-P DDO-005 | Washington Quarter | V pivoted hub doubling |
| 1945-P DDO-008 | Washington Quarter | II distorted hub doubling |
| 1945-P DDO-009 | Washington Quarter | V pivoted hub doubling |
| 1945-D DDO-001 | Washington Quarter | V pivoted hub doubling |
| 1945-D DDO-004 | Washington Quarter | V pivoted hub doubling |
| 1945-S DDO-001 | Washington Quarter | IV+VIII |
| 1945-S DDO-003 | Washington Quarter | I rotated hub doubling |
| 1946-P DDO-002 | Washington Quarter | I rotated hub doubling |
| 1946-P DDO-005 | Washington Quarter | I rotated hub doubling |
| 1946-P DDO-006 | Washington Quarter | VI distended hub doubling |
| 1946-P DDO-008 | Washington Quarter | V pivoted hub doubling |
| 1946-D DDO-001 | Washington Quarter | V pivoted hub doubling |
| 1946-D DDO-003 | Washington Quarter | V pivoted hub doubling |
| 1947-S DDO-001 | Washington Quarter | V pivoted hub doubling |
| 1948-P DDO-002 | Washington Quarter | I rotated hub doubling |
| 1948-P DDO-003 | Washington Quarter | II distorted hub doubling |
| 1948-P DDO-006 | Washington Quarter | V pivoted hub doubling |
| 1952-P DDO-001 | Washington Quarter | VI distended hub doubling |
| 1952-D DDO-001 | Washington Quarter | I rotated hub doubling |
| 1953-P Pr DDO-001 | Washington Quarter | V pivoted hub doubling |
| 1956-P Pr DDO-001 | Washington Quarter | II distorted hub doubling |
| 1961-P Pr DDO-001 | Washington Quarter | II distorted hub doubling |
| 1962-P Pr DDO-002 | Washington Quarter | II distorted hub doubling |
| 1962-P DDO-004 | Washington Quarter | VI distended hub doubling |
| 1963-P DDO-001 | Washington Quarter | II distorted hub doubling |
| 1963-P DDO-002 | Washington Quarter | V pivoted hub doubling |
| 1963-P DDO-004 | Washington Quarter | II distorted hub doubling |
| 1963-P DDO-007 | Washington Quarter | II distorted hub doubling |
| 1963-P DDO-014 | Washington Quarter | II distorted hub doubling |
| 1963-P DDO-018 | Washington Quarter | II distorted hub doubling |
| 1963-P DDO-023 | Washington Quarter | V pivoted hub doubling |
| 1963-P DDO-026 | Washington Quarter | VIII tilted hub doubling |
| 1963-P DDO-027 | Washington Quarter | II distorted hub doubling |
| 1963-D DDO-002 | Washington Quarter | V pivoted hub doubling |
| 1963-D DDO-003 | Washington Quarter | II distorted hub doubling |
| 1963-D DDO-005 | Washington Quarter | II distorted hub doubling |
| 1963-D DDO-008 | Washington Quarter | V pivoted hub doubling |
| 1963-D DDO-010 | Washington Quarter | II distorted hub doubling |
| 1964-P Pr DDO-001 | Washington Quarter | II distorted hub doubling |
| 1964-P DDO-008 | Washington Quarter | II distorted hub doubling |
| 1965-P DDO-001 | Washington Quarter | IV offset hub doubling |
| 1967-P DDO-002 | Washington Quarter | I rotated hub doubling |
| 1968-S Pr DDO-001 | Washington Quarter | I rotated hub doubling |
| 1970-D DDO-001 | Washington Quarter | V pivoted hub doubling |
| 2019-P TX DDO-001 | Washington Quarter | VI distended hub doubling |
| 2020-P VI DDO-001 | Washington Quarter | IV+VIII |
| 1939-P DDO-001 | Walking Liberty Half | V pivoted hub doubling |
| 1942-P DDO-003 | Walking Liberty Half | II distorted hub doubling |
| 1949-P DDO-001 | Franklin Half | II distorted hub doubling |
| 1956-P Pr DDO-001 | Franklin Half | II distorted hub doubling |
| 1960-P Pr DDO-003 | Franklin Half | V pivoted hub doubling |
| 1962-D DDO-001 | Franklin Half | II distorted hub doubling |
| 1962-D DDO-002 | Franklin Half | II distorted hub doubling |
| 1962-D DDO-003 | Franklin Half | II distorted hub doubling |
| 1963-P DDO-006 | Franklin Half | II distorted hub doubling |
| 1963-P DDO-008 | Franklin Half | II distorted hub doubling |
| 1963-P DDO-011 | Franklin Half | II distorted hub doubling |
| 1963-P DDO-013 | Franklin Half | II distorted hub doubling |
| 1963-P DDO-017 | Franklin Half | II distorted hub doubling |
| 1963-D DDO-001 | Franklin Half | II distorted hub doubling |
| 1948-P DDR-001 | Franklin Half | IV+VIII |
| 1948-D DDR-001 | Franklin Half | IV+VIII |
| 1964-P Pr DDO-002 | Kennedy Half | V pivoted hub doubling |
| 1964-P DDO-003 | Kennedy Half | II distorted hub doubling |
| 1964-P DDO-004 | Kennedy Half | II distorted hub doubling |
| 1964-P DDO-005 | Kennedy Half | II distorted hub doubling |
| 1964-P DDO-006 | Kennedy Half | II distorted hub doubling |
| 1964-P DDO-007 | Kennedy Half | II distorted hub doubling |
| 1964-P DDO-014 | Kennedy Half | V pivoted hub doubling |
| 1964-P Pr DDO-021 | Kennedy Half | V pivoted hub doubling |
| 1964-D DDO-001 | Kennedy Half | V pivoted hub doubling |
| 1964-D DDO-002 | Kennedy Half | II distorted hub doubling |
| 1964-D DDO-004 | Kennedy Half | II distorted hub doubling |
| 1964-D DDO-006 | Kennedy Half | II distorted hub doubling |
| 1964-D DDO-007 | Kennedy Half | II distorted hub doubling |
| 1964-D DDO-008 | Kennedy Half | II distorted hub doubling |
| 1964-D DDO-009 | Kennedy Half | II distorted hub doubling |
| 1964-D DDO-010 | Kennedy Half | V pivoted hub doubling |
| 1964-D DDO-012 | Kennedy Half | II distorted hub doubling |
| 1964-D DDO-013 | Kennedy Half | II distorted hub doubling |
| 1964-D DDO-014 | Kennedy Half | II distorted hub doubling |
| 1964-D DDO-016 | Kennedy Half | II distorted hub doubling |
| 1964-D DDO-017 | Kennedy Half | II distorted hub doubling |
| 1964-D DDO-018 | Kennedy Half | II distorted hub doubling |
| 1964-D DDO-019 | Kennedy Half | II distorted hub doubling |
| 1965-P DDO-001 | Kennedy Half | II distorted hub doubling |
| 1965-P DDO-002 | Kennedy Half | II distorted hub doubling |
| 1965-P DDO-003 | Kennedy Half | II distorted hub doubling |
| 1965-P DDO-006 | Kennedy Half | II distorted hub doubling |
| 1965-P DDO-007 | Kennedy Half | V pivoted hub doubling |
| 1966-P DDO-002 | Kennedy Half | II distorted hub doubling |
| 1966-P DDO-004 | Kennedy Half | III design hub doubling |
| 1966-P DDO-005 | Kennedy Half | III design hub doubling |
| 1966-P DDO-006 | Kennedy Half | V pivoted hub doubling |
| 1966-P DDO-008 | Kennedy Half | III design hub doubling |
| 1966-P DDO-011 | Kennedy Half | II distorted hub doubling |
| 1966-P DDO-012 | Kennedy Half | II distorted hub doubling |
| 1967-P DDO-002 | Kennedy Half | II distorted hub doubling |
| 1967-P DDO-004 | Kennedy Half | II distorted hub doubling |
| 1968-D DDO-002 | Kennedy Half | II distorted hub doubling |
| 1968-D DDO-003 | Kennedy Half | II distorted hub doubling |
| 1969-D DDO-001 | Kennedy Half | II distorted hub doubling |
| 1970-S Pr DDO-005 | Kennedy Half | I rotated hub doubling |
| 1971-P DDO-001 | Kennedy Half | V pivoted hub doubling |
| 1971-D DDO-001 | Kennedy Half | II distorted hub doubling |
| 1971-D DDO-002 | Kennedy Half | II distorted hub doubling |
| 1971-D DDO-004 | Kennedy Half | V pivoted hub doubling |
| 1971-D DDO-009 | Kennedy Half | I rotated hub doubling |
| 1971-S Pr DDO-009 | Kennedy Half | V pivoted hub doubling |
| 1972-D DDO-001 | Kennedy Half | II distorted hub doubling |
| 1973-D DDO-001 | Kennedy Half | I rotated hub doubling |
| 1974-D DDO-001 | Kennedy Half | I rotated hub doubling |
| 1977-D DDO-001 | Kennedy Half | I rotated hub doubling |
| 1971-P DDO-001 | Eisenhower Dollar | II distorted hub doubling |
| 1971-D DDO-001 | Eisenhower Dollar | V pivoted hub doubling |
| 1931-D DDO-002 | Mercury Dime | II distorted hub doubling |
| 1931-D DDO-003 | Mercury Dime | |
| 1929-S DDO-001 | Mercury Dime | |
| 1986-D DDO-001 | Lincoln Cent | VI distended hub doubling |
| 1985-D DDO-001 | Lincoln Cent | |
| 1981-D DDO-001 | Lincoln Cent | |
| 1976-P DDO-001 | Lincoln Cent | |
| 1976-P DDO-003 | Lincoln Cent | VI distended hub doubling |
| 1974-P DDO-001 | Lincoln Cent | II distorted hub doubling |
| 1972-S WMDO-001 | Lincoln Cent | I rotated hub doubling |
| 1972-S Pr DDO-004 | Lincoln Cent | I rotated hub doubling |
| 1970-D DDO-021 | Lincoln Cent | I rotated hub doubling |
| 1970-D DDO-022 | Lincoln Cent | I rotated hub doubling |
| 1970-P DDO-027 | Lincoln Cent | I rotated hub doubling |
| 1963-D DDO-001 | Washington Quarter | |
| 1963-D DDO-006 | Washington Quarter | |
| 1972-D WMDO-001 | Lincoln Cent | I rotated hub doubling |
| 1940-P DDO-005 | Lincoln Cent | |
| 1937-P WHO-001 | Lincoln Cent | II distorted hub doubling |
| 1970-S Pr DDO-006 | Lincoln Cent | I rotated hub doubling |
| 1970-S Pr DDO-016 | Lincoln Cent | I rotated hub doubling |
| 1970-S DDO-028 | Lincoln Cent | |
| 1970-S Pr DDO-030 | Lincoln Cent | I rotated hub doubling |
| 1970-S Pr DDO-031 | Lincoln Cent | |
| 1970-S Pr DDO-034 | Lincoln Cent | |
| 1970-S Pr DDO-039 | Lincoln Cent | |
| 1970-S Pr DDO-042 | Lincoln Cent | |
| 1970-S DDO-046 | Lincoln Cent | I rotated hub doubling |
| 1970-S Pr DDO-049 | Lincoln Cent | I rotated hub doubling |
| 1988-P DDO-002 | Lincoln Cent | |
| 1988-P DDO-003 | Lincoln Cent | |
| 1996-P DDO-004 | Lincoln Cent | |
| 2011-P DDO-007 | Lincoln Cent | |
| 1972-P WMDO-001 | Lincoln Cent | I rotated hub doubling |
| 1963-D DDO-017 | Franklin Half | |
| 1963-P Pr DDO-003 | Franklin Half | II distorted hub doubling |
| 1963-P DDO-005 | Franklin Half | |
| 1963-P Pr DDO-010 | Franklin Half | II distorted hub doubling |
| 1962-P Pr DDO-001 | Franklin Half | II distorted hub doubling |
| 1962-P Pr DDO-002 | Franklin Half | II distorted hub doubling |
| 1943-P DDO-001 | Walking Liberty Half | |
| 1971-S Pr DDO-001 | Eisenhower Dollar | II distorted hub doubling |
| 1971-S Pr DDO-016 | Eisenhower Dollar | II distorted hub doubling |
| 1971-D DDO-002 | Eisenhower Dollar | II distorted hub doubling |
| 1960-P Pr DDO-008 | Lincoln Cent | II distorted hub doubling |
| 1955-P Pr DDO-005 | Lincoln Cent | |
| 1892-O DDO-001 | Barber Quarter | |
| 1894-P DDR-001 | Morgan Dollar | II distorted hub doubling |
| 1878-P DDR-001 | Morgan Dollar | |
| 1878-P DDR-007 | Morgan Dollar | |
| 1977-S Pr DDO-001 | Eisenhower Dollar | II distorted hub doubling |
| 1969-S Pr WMDO-001 | Kennedy Half | II distorted hub doubling |
| 1969-D WMDO-001 | Kennedy Half | II distorted hub doubling |
| 1969-D DDO-002 | Kennedy Half | II distorted hub doubling |
| 1969-D DDO-003 | Kennedy Half | II distorted hub doubling |
| 1969-D DDO-005 | Kennedy Half | |
| 1968-S Pr DDO-002 | Kennedy Half | II distorted hub doubling |
| 1968-D WHO-001 | Kennedy Half | |
| 1967-P WHO-001 | Kennedy Half | |
| 1967-P WHO-002 | Kennedy Half | II distorted hub doubling |
| 1971-D WSDO-001 | Kennedy Half | |
| 1971-S Pr WSDO-001 | Kennedy Half | |
| 1971-S Pr DDO-003 | Kennedy Half | I rotated hub doubling |
| 1971-S Pr DDO-004 | Kennedy Half | V pivoted hub doubling |
| 1971-S Pr DDO-005 | Kennedy Half | I rotated hub doubling |
| 1971-S Pr DDO-006 | Kennedy Half | V pivoted hub doubling |
| 1971-S Pr DDO-007 | Kennedy Half | II distorted hub doubling |
| 1971-S Pr DDO-008 | Kennedy Half | I rotated hub doubling |
| 1971-S Pr DDO-009 | Kennedy Half | I rotated hub doubling |
| 1971-S Pr DDO-010 | Kennedy Half | I rotated hub doubling |
| 1971-S Pr DDO-012 | Kennedy Half | V pivoted hub doubling |
| 1971-S Pr DDO-013 | Kennedy Half | I rotated hub doubling |
| 1971-S Pr DDO-014 | Kennedy Half | I rotated hub doubling |
| 1971-S Pr DDO-015 | Kennedy Half | I rotated hub doubling |
| 1971-S Pr DDO-016 | Kennedy Half | II distorted hub doubling |
| 1971-S Pr DDO-017 | Kennedy Half | II distorted hub doubling |
| 1971-S Pr DDO-018 | Kennedy Half | II distorted hub doubling |
| 1972-P WSDO-001 | Kennedy Half | |
| 1972-P DDO-001 | Kennedy Half | V pivoted hub doubling |
| 1972-S Pr WSDO-001 | Kennedy Half | |
| 1973-S Pr DDO-002 | Kennedy Half | |
| 1898-P DDR-001 | Morgan Dollar | |
| 1892-P DDO-001 | Barber Quarter | |
| 1892-P DDO-002 | Barber Quarter | II distorted hub doubling |
| 1892-P DDO-003 | Barber Quarter | II distorted hub doubling |
| 1892-P DDO-004 | Barber Quarter | |
| 2020-P VI DDO-002 | DC & Territories Quarter | |
| 2020-P VI DDO-003 | DC & Territories Quarter | |
| 2017-P NJ DDO-001 | America the Beautiful Quarter | |
| 1984-P DDO-001 | Kennedy Half | VI distended hub doubling |
| 2018-P MI DDO-001 | America the Beautiful Quarter | |
| 1914-D DDO-001 | Barber Quarter | |
| 1956-P Pr DDO-003 | Franklin Half | VI distended hub doubling |
| 1956-P Pr DDO-004 | Franklin Half | VI distended hub doubling |
| 1950-P Pr DDO-001 | Franklin Half | |
| 1972-D WSDO-001 | Kennedy Half | |
| 1974-D DDO-002 | Kennedy Half | |
| 1974-D DDO-002 | Eisenhower Dollar | |
| 1960-P Pr DDO-008 | Franklin Half | |
| 1960-P Pr DDO-011 | Franklin Half | |
| 1960-P Pr DDO-014 | Franklin Half | |
| 1960-P Pr DDR-008 | Franklin Half | |
| 1971-P WSDO-001 | Kennedy Half | |
| 1971-P WMDO-001 | Kennedy Half | II distorted hub doubling |
| 2012-P DDO-001 | Roosevelt Dime | |
| 1969-S Pr DDO-001 | Washington Quarter | I rotated hub doubling |
| 1968-S Pr DDO-002 | Washington Quarter | |
| 1964-D DDO-008 | Washington Quarter | |
| 1964-D DDO-009 | Washington Quarter | |
| 1964-D DDO-010 | Washington Quarter | |
| 1964-D DDO-011 | Washington Quarter | |
| 1964-D DDO-013 | Washington Quarter | |
| 1962-P DDO-002 | Washington Quarter | |
| 1962-P DDO-004 | Washington Quarter | |
| 1961-P Pr DDO-003 | Washington Quarter | |
| 1961-P Pr DDO-004 | Washington Quarter | |
| 1961-P Pr DDO-005 | Washington Quarter | |
| 1961-P Pr DDO-006 | Washington Quarter | |
| 1961-P Pr DDO-007 | Washington Quarter | |
| 1961-P Pr DDO-009 | Washington Quarter | |
| 1960-P Pr DDO-005 | Washington Quarter | II distorted hub doubling |
| 1960-P Pr DDO-007 | Washington Quarter | |
| 1960-P Pr DDO-008 | Washington Quarter | |
| 1960-P Pr DDO-009 | Washington Quarter | |
| 1957-P Pr DDO-001 | Washington Quarter | |
| 1956-D DDO-001 | Washington Quarter | |
| 1956-P Pr DDO-002 | Washington Quarter | |
| 1956-P Pr DDO-006 | Washington Quarter | |
| 1955-P Pr DDO-001 | Washington Quarter | |
| 1955-P Pr DDO-002 | Washington Quarter | |
| 1954-S WMHO-001 | Washington Quarter | |
| 1954-D WMHO-001 | Washington Quarter | |
| 1954-P WMHO-001 | Washington Quarter | |
| 1953-S WMHO-001 | Washington Quarter | |
| 1953-D WMHO-001 | Washington Quarter | |
| 1953-P WMHO-001 | Washington Quarter | |
| 1952-S WMHO-001 | Washington Quarter | |
| 1952-D WMHO-001 | Washington Quarter | |
| 1952-P WMHO-001 | Washington Quarter | |
| 1951-S WMHO-001 | Washington Quarter | |
| 1951-D WMHO-001 | Washington Quarter | |
| 1951-P WMHO-001 | Washington Quarter | |
| 1982-S Pr WMDO-001 | Washington Quarter | |
| 1982-D WMDO-001 | Washington Quarter | |
| 1982-P WMDO-001 | Washington Quarter |
The same device, coin after coin
Doubling on IGWT looks similar across dozens of varieties, which is exactly why eyeballing it misleads. Measure the displacement instead and the differences stop being a matter of opinion.