2 Mintmark/Doubling Questions - Coin Community Forum

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Author	Replies: 2 / Views: 953
cpfull Pillar of the Community United States 603 Posts	Posted 07/09/2007 10:46 am I have 2 examples I need help with, first a 1998 nickle Image: mm.jpg 37.37 KB There is no other doubling on the coin, but the mm would not have been punched in by hand in this year right? Can anybody explain the cause? 2nd a 1999 nickel, it has Strike Doubling all over the obverse, doubled toward the rim in all cases, as shown by the mm and G of God. Image: mech mm.jpg 37.78 KB Image: g.jpg 35.09 KB the same type of doubling occurs on the reverse to a lesser degree.but only on the edge letters, not 5 cents or monticello. How can the doubling, if it is strike, spread toward the rim all around the coin? Shouldn't it be toward the center on one side? Thanks for your help. Report this Post to the Staff

tcekolin Valued Member United States 69 Posts	Posted 07/09/2007 11:31 am More than half of the 1999 P nickels I have looked at have varying degrees of Mechanical Doubling. At least the mint mark and often all through the date and other lettering on the obverse. I have saved a couple of the nicest that I have found and now just return the others to circulation. Dunno why that year and that mint were so prone to Mechanical Doubling. In fact, in all of the coin searching I have done, I have yet to find true die doubling on any coin, darn it! Still looking though I have no idea why the doubling is spread around like it is so I'll definitely watch for the more knowledgeable replies to this post. - Tony Edited by tcekolin 07/09/2007 11:33 am Report this Post to the Staff
coppercoins Pillar of the Community United States 7629 Posts	Posted 07/09/2007 12:46 pm Your first coin is Machine Doubling. It can happen anywhere on the coin that the coin sticks to the die. No particular reason, only thing that counts is that it's common and is not worth a premium value. Your second coin is Die Deterioration Doubling. Happens when the die wears and the surface starts to chip away. It also has no premium value and is very common on nickels. Report this Post to the Staff
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