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PMD or DDO?
sumdunce
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in Q & A Forum
Found this while testing my new digital microscope:
Looks PMD to me.
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MD?
Flat and shelf alike appearance. No split serifs. Characteristics of Mechanical doubling
There are numerous coins that display MD or Die Deterioration Doubling, but very few with true hub doubling. Understanding the characteristics of each will save you you a lot of time if you continue to search for doubled dies. The following links have some good info. I recommend taking some time to study it.
https://www.doubleddie.com/58222.html
https://www.doubleddie.com/144801.html
Also called strike doubling. It is caused by loose parts in the press.
Machine doubling.
More precisely "Slide doubling" - like stated previously, loose machine parts pushed the die as it was striking the planchet.
"When they can't find anything wrong with you, they create it!"
Machine Doubling.
Not a DDO
Wayne
Kennedys are my quest...
Love the comments - thanks for sharing your knowledge.
USN & USAF retired 1971-1993
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