ALL S MINT COINS- S mint coins were proofs to begin with and are very rarely in circulation
Pennies
1908 or earlier
1909-1958 Wheat pennies Many errors in this list
1960,1970S small date
1960 Large date over small date
1960D D over D small over large date
1969D no initials
1969S, 1971, 1971S, 1972, 1983, 1995 Double Die
1984 Double Ear
1992, 1992D, 1998S, 1999S Close AM
1996, 1998, 1999, 2000 Wide AM
2009 Lincoln back
Nickels
1937 or earlier
1939 Doubled Monticello
1942-1945 War nickels
1943 3 over 2
1949D, 1955 D over S 1950D
1954S S over D
1994P, 1997P Matte proof
2009 (very low mintage)
Dimes
1945 or earlier
1946-1964 Silver coinage
1982 No mint mark
1996W
2009 (very low mintage)
Quarter
1930 or earlier (nothing during 1931) Silver coinage
1932-1964 Also silver coinage
1937, 1942D, 1943, 1943S Double Die
1950D D over S
1950S S over D
Wisconsin Quarter extra leaf
Turned Die State Quarter
Half Dollars
1970 and earlier
1974D Double Die
1987 (both P and D)
Canadian Coins
Pennies
1955 No Shoulder Fold
1962 Double Date
1964 Missing MG, Missing G, or Extra Spine
1965 Pointed 5
1967, 1978 Double Date
1983 Near beads
1985 Pointed 5
2006 Magnetic No logo/No P
Nickels
1858-1919 Silver coinage
1953 Many different errors, best to keep any
1954 Missing Chrome
1957 Bug Tail
1958, 1962 Double date
1964 Extra water line or “spitting queen”
1965 Large beads
1980 Double Date
Dimes
1858-1967 Silver coinage
1969 Large date
Quarter
1908-1967 Silver coinage
1973 Large bust
1973 Mountie
1991 Low mintage (>500k)
1992,1999 Other than Caribou
2000 January die rotation
Half Dollars
1908-1967 Silver coinage
1974 Missing S
1978 Round jewels
1982 Small beads
Dollars
1935-1967 Silver coinage
1968 DHL #1
1974 Double yoke
1982 Constitution (certain configurations)