NGC PF69 1981 S Type 2 $0.01 RD Ultra CAMEO
4270879-003
https://www.ngccoin.com/certlookup/4270879-003/69/
Weight: 3.11g
Metal: 95% Copper, 5% Zinc
Designer: Victor David Brenner/Frank Gasparro
Mintage: 3,857,479
Edge: Plain
Diameter: 19,00mm
Mint: San Francisco
The San Francisco Mint produced two different varieties of the 1981 S Proof Lincoln Memorial Cent (Penny) where one had a filled in S and the other had a Clear S. This can be best identified by the S being clearer and not as filled in. It is also "flatter" in a vertical sense.