1958 Lincoln Wheat Penny Double Die Obverse
1958 Doubled Die Cent Smashes Records - Numismatic News
1933 Double Eagle Smashes Record - Numismatic News
PMR - 2023 #3 May/June by Professional Coin Grading Service
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Numismatic News - Maryland's Digital Library - OverDrive
Wexler's Coins and Die Varieties
Auction Results
Bowers on Collecting: harvesting Wheat pennies 1909-1958 — Mint
1958 1C Doubled Die Obverse, RD (Regular Strike) Lincoln Cent
Errors & Varieties
Rare doubled die error pennies sell for big bucks. Here's what
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1958 1C Doubled Die Obverse, RD (Regular Strike) Lincoln Cent
1955 Lincoln Cent DOUBLED DIE OBV NGC MS60 UNC Details REV Cleaned