Proof Set 1980 "S" Mint Mark

This 1977 Proof Set includes the following 6 coins:

• Lincoln Cent
• Jefferson Nickel
• Roosevelt Dime
• Washington Quarter
• Kennedy Half Dollar
• Eisenhower Dollar

The proof coins in this set were struck at the San Francisco Mint.

The term "Proof" refers to a method of manufacture and NOT the condition of a coin. Proof coins can usually be distinguished by their sharpness of detail, high wire edge, and extremely brilliant - mirror like surface.