This is a comprehensive list of business strike errors and varieties across popular denominations. Each entry has a unique PCGS CoinFacts number meaning it is valuable and often required for set registries. These are sought after by collectors with distinct retail, wholesale and auction prices.
In addition to the major types listed below, PCGS for an additional fee will also slab off-center strikes, rotated dies, struck-through, double-struck, mules, brockage, broadstrikes, wrong planchet, clipped planchets, and multiple strikes. To view examples of these, go to Proxiblog’s comprehensive illustrative glossary.
LINCOLN WHEAT CENTS

1943 Copper Cent (40 known)
1943-D Copper Cent (1 known)
1943-S Copper Cent (5 known)
1944 Steel Cent (25-30 known
1944-D Steel Cent (7 known)
1944-S Steel Cent (2 known)
LINCOLN MODERN CENTS

1969-S DDO (30 known)
BUFFALO NICKEL

JEFFERSON NICKEL

MERCURY DIME

ROOSEVELT DIME

WASHINGTON QUARTER

WALKING HALF DOLLAR

KENNEDY HALF DOLLAR

MORGAN DOLLAR (All VAMS not listed)

PEACE DOLLAR (VAMS not listed)

EISENHOWER DOLLAR

SUSAN B. ANTHONY DOLLAR

SACAGAWEA DOLLAR

Note: All years have Position A and Position B (Also: Partial/Weak)