The copper plating has been removed chemically after the coin was in circulation
Retired Collector & Dealer in Major Mint Error Coins & Currency since the 1960's.Co-Author of Whitman's "100 Greatest U.S. Mint Error Coins", and the Error Coin Encyclopedia, Vols., III & IV. Retired Authenticator for Major Mint Errors for PCGS. A 50+ Year PNG Member.A full-time numismatist since 1972, retired in 2022.
Your cent looks like it was struck on an unplated zinc planchet. Sometimes a cent planchet can miss the copper plating step in the manufacturing process.
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire
Answers
The copper plating has been removed chemically after the coin was in circulation
Your cent looks like it was struck on an unplated zinc planchet. Sometimes a cent planchet can miss the copper plating step in the manufacturing process.
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire
Looks like a zinc planchet... No copper. Definitely not silver though. Cheers, RickO