Hey, I was just wondering about double die..ive been reading a lot of different posts and some of the pictures that i see, it is very clear, but others it isnt very clear to me, what are you supposed to look for?? Also, does anyone know of any quarters? I ask because i have a 1971 quarter D mint and the writing in "In God We Trust" is very thick, it looks much thicker than the 1977 quarter right next it. I dont know if its just minted different. Thank you! ill try and post a decent picture of the two side by side..
Well when you are saying thick some coins that have extra thickness on the letters can be a doubled die and it;s doubled die not double die. All class 6 doubled dies disdended hub doubling, do not have notching on the letters some can have seperation lines, but again no notching and most class 6 doubled dies are not worth much unless you have extreme extra thickness on the letters. I do not see any thing of significance on you coin looks normal to me. don't see extra thickness on the letters at all. JC
Here is an excellent page to learn about real doubled dies ( at bottom of page) and "other" type of doubling including MD, etc. with good illustrations. http://koinpro.tripod.com/Articles/OtherFormsOfDoubling.htm Also this explains the differing types of doubled dies and how they are made. http://www.coin-gallery.com/cgstanton3.htm On thickening of type 6 DD, here is an example of a type 6 DDO 1925-S Lincoln http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=250409671374 Notice the bottom of the "9" and the "2" in the date. Since the legends and date are not straight vertical, but truncated at an inward angle from the bottom so they can be struck and ejected easier, wear or a weak strike can make the tops of one you are seeing appear to be somewhat broader than the tops of others, so the difference has to be significant. However, remember it is the type 6 Doubled die that would make it thicker, not that every thicker letter/number is a type 6 double die ( actually very few are). I don't see any significant broadening of your coin. But the fun is in the research of how things happen . Jim
A hub is a positive image of a coin that is pressed into die steel to make a die (a negative image). I think the Red Book has a fairly good description of the die-making process. If not I'm sure you can find a thread or two (or 20) here on CoinTalk that describes how dies are made. Until you understand how dies and coins are made you cannot understand how doubled dies are created.
The 1971 quarter is normal. Do not use two different years of coins to compare against one another - the designs do change over time. The whole distended (not disdended) hub doubling thing was more confusing than it helped, actually.
You will find some but get the books You will find some but get the books. The Cherry Pickers Guilds by Fivas/Stanton The Error Coin Encyclopedia by Margoilis/Weinburg. The second book will help you understand how dies are made and that in turn will help you understand how doublED (not double) dies occur. Remember, the reason it's a doublED die is that the die has been hubbed more than once incorrectly and is a doubled die before it ever strikes a coin. True doublED dies have nothing to do with striking errors or "doubling on a coin does not a doublED die make".
I suggest you learn all the eight classes of doubling so when you happen to see a doubled die you can try and figure out what class it is. 1 Rotated Hub 2 Distorted Hub 3 Design Hub 4 Offset Hub 5 Pivoted Hub 6 Distended Hub 7 Modified Hub 8 tilted Hub JC
