Learning Forms Of Doubling - Coin Community Forum

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Author	Replies: 8 / Views: 1,096
Fishnwidow Valued Member United States 228 Posts	Posted 04/14/2007 9:13 pm I am trying to learn the differnt forms of doubling, and need a little extra help from the experts here. I am using Ken Potters Educational guide to forms of doubling to learn between collectable and the non collectable forms. I am going to post 2 pictures, the first one I think is a " Die Deterioration Doubling", tell me if I am right or wrong. The second picture looks like it was punched about 4 times, is it just called Strike Doubling? For myself as a newbie, learning the difference is not easy. But at least I am trying. Fishnwidow Report this Post to the Staff

Jim M. Valued Member United States 69 Posts	Posted 04/14/2007 9:27 pm Your second dime appears to be a filled die error. This happens when grease or something else obstructs a die, preventing a full strike. I have found several 1995 Kennedy half dollars with filled dies that were so bad that the date and LIBERTY were nearly obliterated. ~Jim Report this Post to the Staff
gnome Valued Member Australia 372 Posts	Posted 04/14/2007 9:28 pm You could try this as well. Info Report this Post to the Staff
Fishnwidow Valued Member United States 228 Posts	Posted 04/14/2007 11:06 pm Thanks Jim & Thanks Gnome that site is very helpful!!! Fishnwidow Report this Post to the Staff
Topher Pillar of the Community Canada 965 Posts	Posted 04/14/2007 11:28 pm Thanks. Everything I wanted to know about doubling, and then some. I guess I won't be going to bed early tonight either! :) Report this Post to the Staff
Metalman Pillar of the Community United States 7123 Posts	Posted 04/15/2007 02:42 am the first coin is Mechanical Doubling ,, notice the shelf like appearance. the second coin what your seeing does not show up well ,, it just looks like a late die state coin with heavy flow lines to me . Metalman Report this Post to the Staff
thingee Pillar of the Community United States 2177 Posts	Posted 04/15/2007 7:06 pm I'm still working on the differences doubling. It's tricky untit you get the knack. I salute your efforts. Edited by thingee 04/15/2007 7:08 pm Report this Post to the Staff
Fishnwidow Valued Member United States 228 Posts	Posted 04/16/2007 09:47 am Thank you Metalman, on the second coin the lettering is very thick compared to other dimes I have. But now I know what flow lines are. Thank you Thingee & good luck to you with the learning also. I may have to break down and go buy a real double to compare with. If machanical doubling ever becomes valuable, I'll be rich. Fishnwidow Report this Post to the Staff
tmor Valued Member United States 159 Posts	Posted 04/17/2007 3:54 pm The CherryPickers Guide to Rare Die Varieties has a very good section on doubled die coins. It even includes a photo exam at the end. It is one of my favorite books and has payed for itself many times over. Report this Post to the Staff
	Replies: 8 / Views: 1,096

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