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All Forums Category: World Coins and Currency Forums Forum: United Kingdom (Great Britain) Coins

Help For Material Compositions

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Author Previous TopicReplies: 3 / Views: 2,033Next Topic  
yaoc01
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Canada
2 Posts
 Posted 11/13/2007  7:57 pm Show Profile   Bookmark this topic Add yaoc01 to your friends list Get a Link to this Message Number of Subscribers
Does anyone know the material composition for goloid? It's used for Pattern Proof Crown, July 2001 Pattern Auction.

Thanks
Firecom911
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Firecom911's Avatar
United States
161 Posts
 Posted 11/13/2007  8:21 pm  Show Profile   Bookmark this reply Add Firecom911 to your friends list Get a Link to this Reply

The patented goloid alloy is:

(by weight)

1 part gold
24 parts silver
2.5 parts copper

Patent #191,146 by W.H. Hubbard (1877) states that "the proportions may vary slightly".

Hope this helps.

Steve
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yaoc01
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Canada
2 Posts
 Posted 11/13/2007  8:41 pm  Show Profile   Bookmark this reply Add yaoc01 to your friends list Get a Link to this Reply
Thanks for your reply, Steve. One guy told me goloid is also used by U.S Mint for material test nowadays. Is that right?
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Firecom911
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161 Posts
 Posted 11/14/2007  01:36 am  Show Profile   Bookmark this reply Add Firecom911 to your friends list Get a Link to this Reply

I don't know if the US Mint uses goloid today as a test material.

I do know that goloid was used by the US Mint in the 1870s and 1880s
to strike pattern dollars (sometimes referred to as "metric dollars").

Steve
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