The unprecedented crossover underscores his personal efforts to combat “grade inflation.”
Just a few legitimate proof strikes are known of this issue. Millions of dollars’ worth of the 1853 900-Thousandths $20s were struck by the United States Assay Office, making these double eagles the most commonly encountered pioneer gold issue. Between 500 and 600 examples are known today, with somewhere around ten grading MS65 or MS66. 17 Kagin-18 $20s were recovered from the S.S. Central America. So-called “Prooflike Assay $20” forgeries were marketed by John J. Ford in the 1960s. These were initially exposed in the 1960s by numismatist Eric P. Newman, and the coin from which their dies were copied was identified in 2006 by David J. McCarthy.
Obverse Description
Eagle clutching shield and ribbon UNITED STATES OF AMERICA 900 THOUS TWENTY D.
Reverse Description
Engine turning UNITED STATES ASSAY OFFICE OF GOLD SAN FRANCISCO CALIFORNIA. 1853.
Book Reference
Millions of dollars’ worth of the 900 THOUS. 1853 double eagles were struck by the US Assay Office, making these the most commonly encountered pioneer gold $20 issue. Between 500 and 600 examples are known today, with somewhere around 10 grading MS-65 or MS-66. Seventeen K-18 $20 coins were recovered from the SS Central America. So-called “Prooflike Assay $20” forgeries were marketed by John J. Ford in the 1960’s. These were soon exposed by numismatist Eric P. Newman, and the coin from which their dies were copied was
A “Prooflike Assay $20” forgery showing identified in 2006 by David J. McCarthy.prominent repeating depressions.
Obverse: Eagle clutching shield and rib.bon inscribed. LIBERTY., with UNITED STATES OF AMERICA TWENTY D 900 THOUS
Reverse: Engine-turned pattern with a tablet reading U.NITE.D STATES ASSAY OFFICE OF GOLD SAN FRANCISCO CALIFORNIA 1853
Catalog Information
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The designs will be featured on a $5 gold coin, a $1 silver coin, and a half dollar clad coin.





