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All Forums Category: US Coins and Currency Forums Forum: US Modern Variety and Error Coins

Double Die Vs. Machine Doubling?

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dbrablec
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 Posted 03/04/2009  4:18 pm Show Profile   Bookmark this topic Add dbrablec to your friends list Get a Link to this Message Number of Subscribers
i read the definition of double die - in the glossary. I didn't find a definition of Machine Doubling. what is the difference. and physically how does a doubling like a 2/1 type of doubling actually occur. thanks
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All Forums Category: US Coins and Currency Forums Forum: US Modern Variety and Error Coins



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