gm99 collection
Lincoln One Cent.
1975S-Mintmark: S (for San Francisco, CA) below the date.
 PROOF SET. 
Metal content:
Copper - 95%
Tin and Zinc - 5%
Lincoln One Cent. 1975S-Mintmark: S (for San Francisco, CA) below the date. PROOF SET. Metal content: Copper - 95% Tin and Zinc - 5%
North America
USA
1975