In recent Answers, we explained the Red and Red/Brown Character Strikes for copper coins. This Answer covers Brown Cents.
Understanding Coin Grading And What It All Means - The Patriotic Mint Coins
APMEX 1 oz AVDP ounce Copper Round Coin - Aliens We'll be Back - SKU#226562
What are US Mint Pre-1933 Gold Coins?
Gifted this by my late grandfather. Need advice on what to do with it. : r/coincollecting
What is XF in Coin Grading? - APMEX
What is a Strike Character in Coin Grading? - APMEX
Questioning Earliest Die State Coins - Numismatic News
RCMR - 2021 #1 January/February by Professional Coin Grading Service (PCGS) Market Report - Issuu
PCGS Announces Exclusive APMEX Partnership to Offer New Bullion FirstStrike® Service for 2020
Answers Page - APMEX
Gerry Fortin Rare Coins - Gerry's Daily Blog