A.C. Dwyer's Coin Stories

News, Stories, Pricing, and Information for Coin Collectors
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Coin Collecting Glossary
 More than just a glossary, this is a who's who and what's what of coin collecting. This list is a
work-in-progress, but if you find something missing that you think should be added, please contact me.

 

 

- - J - -

 

Janvier Machine

 The Janvier transfer reducing machine traces a larger than actual coin design from a galvano or epoxy shell unto the end of a piece of steel which will become the master hub.  The resulting design on the master hub is the actual diameter of the coin and in raised relief just as it will appear on the coin.

See also - - Master Hub 

Junk Silver

Definition coming soon.