1985-D Repunched Mint Mark / RPM ? - Coin Community Forum

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Author	Replies: 8 / Views: 1,229
bournepiper Valued Member United States 161 Posts	Posted 08/01/2011 11:15 am Is this an error or rpm? Thanks Report this Post to the Staff

coop Bedrock of the Community United States 62064 Posts	Posted 08/01/2011 12:11 pm That is just plating spliting under the SE edge of the mint mark. Back when they used to punch the mint mark in by had, the bottom area mentioned formed a fin. Normally that wouldn't be a problem on the copper cents, but on the Zincolns it split the plating in that area. Very common. Guess what? They only get worst with time. When the split happens then air gets to the zinc and it's all down hill from there. Report this Post to the Staff
augbauer Pillar of the Community Philippines 606 Posts	Posted 08/01/2011 8:19 pm Coop is the expert; I agree with him. Report this Post to the Staff
seal006 Pillar of the Community United States 1915 Posts	Posted 08/01/2011 8:26 pm Coop, Once again, great illustration. Report this Post to the Staff
DVCollector Bedrock of the Community United States 10045 Posts	Posted 08/01/2011 8:54 pm It's an inexplicable combination of metals. Copper hastens zinc corrosion; solid zinc coins from WWII are more durable. Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 08/01/2011 9:28 pm Actually the 1943 cents are steel with a zinc coating on them. They stick to a maganet. Zinc coins aren't attracted. Edited by coop 08/01/2011 11:02 pm Report this Post to the Staff
DVCollector Bedrock of the Community United States 10045 Posts	Posted 08/01/2011 11:10 pm Right--I'm speaking of zinc WWII occupation coins of Europe. Even so--I think the 1943 steel US cent will prove more durable. Report this Post to the Staff
bournepiper Valued Member United States 161 Posts	Posted 08/01/2011 11:15 pm Funny I just found a penny that has holes in it and it appears that there are salt crystals growing in them. Maybe it was once in salt water. Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 08/02/2011 12:27 am That is just part of the deteriation of the zinc. It always reminds me of spider eggs. (Oops, the farm boy again.) Report this Post to the Staff
	Replies: 8 / Views: 1,229

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1985-D RPM?