1971-S Proof Washington Quarter. Machine Double Or Doubled Die Obverse / DDO ?

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Author	Replies: 7 / Views: 2,061
jdiablo30 Pillar of the Community United States 946 Posts	Posted 05/07/2015 06:35 am Was trying to organize all my smalls last night and in doing so I like to check every coin under a loupe just to get some eye time in. I'm pretty sure this is a Machine Doubling effect. The only uncertainty for me is some of the doubling doesn't have that shelf like appearance. Sorry for the pictures. They are not the best. They are from a point and shoot macro camera. After I immurse myself in some of the photog threads more then I will upgrade. I need to get nice close up pictures as some of you guys can achieve. * Moved by Staff to a more appropriate forum. * Report this Post to the Staff

jdiablo30 Pillar of the Community United States 946 Posts	Posted 05/07/2015 06:43 am Some of the devices seemed to have been enlarged. The "E" in WE in the motto is a good example. I will take better pictures later. Just snapped a couple before work to see if I can determine machine or true. Leaning towards machine doubled. Report this Post to the Staff
Mister Kairu Pillar of the Community United States 1911 Posts	Posted 05/07/2015 09:19 am Well, based off what I remember from the DDO info in that previous thread... I thought that since the doubling is increasing the size of the letters that would point towards DDO, as I believe if it appeared was cut off that pointed towards Machine Doubling... but that is my guess I wonder if I am getting this right since I am really new to errors. Someone will correct me, though :) Report this Post to the Staff
BlueSolo Pillar of the Community United States 740 Posts	Posted 05/07/2015 09:55 am Looks like MD to me. Also, there's only 1 listing for 1971 S DDO if you want to compare: http://varietyvista.com/Variety%20M....htm#_1971-S Report this Post to the Staff
SilverStackerKid Pillar of the Community United States 6478 Posts	Posted 05/07/2015 10:16 am I see MD. Report this Post to the Staff
jdiablo30 Pillar of the Community United States 946 Posts	Posted 05/07/2015 12:54 pm Yea I figured MD...one of these days I might find a true DDO. Thanks everyone Report this Post to the Staff
Mister Kairu Pillar of the Community United States 1911 Posts	Posted 05/07/2015 1:35 pm Welp seems I still need more practice looking at the difference between the two! :P A great place to learn that is here for sure though! Report this Post to the Staff
koinpro Pillar of the Community United States 1781 Posts	Posted 05/07/2015 3:00 pm This is Strike Doubling aka Machine or Mechanical Doubling, Die Bounce, Chatter, etc. Strike Doubling is the preferred term of the author's of the CherryPickers' Guide To Rare Die Varieties and mine too. However, the preferred term promoted by my mentor the late Alan Herbert was Machine Doubling Damage -- which I used for many years until I read J.T. Stanton's argument against it. None of the terms are perfect in my opinion. I do not like the use MD to designate Mechanical or Machine Doubling as this is the abbreviation that has been used for Master Die for decades and as such I avoid it like the plague. Just so that you know ... Edited by koinpro 05/07/2015 3:10 pm Report this Post to the Staff
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1971-S Proof Washington Quarter. Machine Double Or DDO?