Web site visitor Rafael Delgado asks:
"Would any solid metal
(not clad) coin minted in the Philadelphia Mint have a specific
gravity between 6.9 and 7.3 ? Would you remember any
reference magazine that published an article about experimental
metals during the period 1973 to 1980?
I am looking specially to the period from the 1973 copper
shortage to mid 1980 due to a coin that exhibits a metal not
compatible with any metal reported by the US Mint (neither
foreign nor domestic) in the resources at hand: "Specifications
of US coins" from Coin World Almanac, and "World Coins
Minted by the US Mints" from the 2001 Blackbook. It seems
an experimental metal for the Susan B. Anthony dollar or a
counterfeit. My interest is determining which it is."
Perhaps one of our astute subscribers is aware of such a
piece or a reference to it.
Wayne Homren, Editor
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