Gerald Tebben, a Coin World columnist for more than 30 years, also contributes to Coin World’s Coin Values and edits the Central States Numismatic Society’s journal, The Centinel. He collects coins that tell stories.
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When’s a half dollar not a half dollar?
This "1759" Martha Washington “half dollar” test piece is one of several struck by the Mint from four different materials tested for the half-dollar-sized piece, among 17 different preparations created by Battelle Memorial Institute of Columbus, Ohio, during the 1964 search for coinage metal substitutes.