Did Denver Mint Have MM Problems In 92 & 93

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Author	Replies: 9 / Views: 1,351
southsav Pillar of the Community 2224 Posts	Posted 02/01/2012 6:54 pm Did the Denver mint have problems with their mm in 1992 & 1993? Are these die chips or PMD? Thanks, Jim Report this Post to the Staff

Plat1num Valued Member United States 79 Posts	Posted 02/01/2012 7:01 pm Looks like zinc rot to me. Report this Post to the Staff
amida17 Pillar of the Community United States 4897 Posts	Posted 02/01/2012 7:43 pm +1 Zinc rot. Report this Post to the Staff
yankee1227 Pillar of the Community United States 1151 Posts	Posted 02/01/2012 8:02 pm Yup, I agree, zinc rot. Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 02/01/2012 8:28 pm Plating splits that let to zinc rot. Seems like the adding the mint mark to the die instead of punching them in by hand would have removed the problem. But it didn't in these two cases. Report this Post to the Staff
southsav Pillar of the Community 2224 Posts	Posted 02/01/2012 10:17 pm Ok, thanks, learned two new terms tonight, plating splits and zinc rot. Isn't it a little unusual for zinc rot after 1990? Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 02/02/2012 12:52 pm I agree it is not normal. Extra value? The coin is breaking down. Report this Post to the Staff
pman860507 Pillar of the Community United States 784 Posts	Posted 02/02/2012 2:27 pm Report this Post to the Staff
southsav Pillar of the Community 2224 Posts	Posted 02/02/2012 8:17 pm Coop, Thanks for the great progression photos. Do I understand it correctly that the rot will actually progress as your photos depict? Jim Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 02/02/2012 9:53 pm Some have added acid through a hole in both ends of the edge of a coin and make a hershey's kiss out of it. It's just a matter of time. Report this Post to the Staff
	Replies: 9 / Views: 1,351

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