Erik Martin
Contributor
Erik S. Martin formerly served as the managing editor of Coin World's Coin Values monthly supplement.
U.S. Coins
What is the value of gold- and platinum-plated State quarters?
Whether painted or plated with gold or some other gold-like substance, coins treated in this manner have no real numismatic value beyond their face value.
World Coins
Goldberg's to auction finest known 'Royal' 1650 Mexican 8-real coin
Item offered in Goldberg's Sept. 4 to 5 Pre-Long Beach auction
World Coins
A.H. Baldwin & Sons to sell Bentley Collection May 8
Auction features British sovereign coins, patterns and trial strikes
