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1970-S Proof Quarter DDO?

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Valued Member

United States
332 Posts
 Posted 12/08/2014  10:21 pm Show Profile   Bookmark this topic Add amnight to your friends list Get a Link to this Message Number of Subscribers
Hi. I am wanting to know if this coin shows a doubled die or Machine Doubling? It looks to me that there is flat field doubling on the coin, but I'm not sure if there is another type of doubling on the coin. All help is appreciated! Thanks! Also, if better pics are needed, let me know and I will try and post them.



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Bedrock of the Community
coop's Avatar
United States
62064 Posts
 Posted 12/09/2014  12:02 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
It appears to machine machine damaged on the motto. Keep in mind that proof coins are struck more than once. If the alignment isn't exact you can see flat field doubling, die movement and Strike Doubling on these coins. The flat look in the 11th and 12th image tells me it is a MD on the tops of the devices. Glare is a problem as it can make reflection off another device make it look like doubling because of reflection. The 9th image looks like the MD has reduced the height of the "T".
New Member
United States
24 Posts
 Posted 12/13/2014  02:43 am  Show Profile   Bookmark this reply Add Hummingbird to your friends list Get a Link to this Reply
amnight, nice diversity of your photographic presentation! As Coop pointed out, this coin may only be MD. The I in LIBERTY definitely shows MD, by the flattened area on the right side. This also, as Coop pointed out on the T, diminishes the size of the letter. G and T above George's head have distinct ridges on their tops indicating MD. MD appears in other places but the I, G & T provide the best evidence of MD.

In my humble opinion, from what I can see, there are probable evidences of DD. Better pictures without the glare will make it much easier for Coop and us other members to determine if there is actual DD going on here.

I have recently discovered that by reducing the intensity of the light source, the glare is greatly reduced if not eliminated all together and provide better detail. In my case it also produced a different shade/tone or color of the coin. Tilting/slanting the coin will allow for greater definition of the details. Remember to tilt the coin so the shadow is not covering the detail that you want to show.

I nearly forgot, an incandescent light source from the side, in addition to the LED lights, can aid in highlighting the details.

Can't wait to see the new pictures!!
Edited by Hummingbird
12/13/2014 02:45 am
Valued Member
United States
332 Posts
 Posted 12/13/2014  10:06 pm  Show Profile   Bookmark this reply Add amnight to your friends list Get a Link to this Reply
Thanks for the reply's coop and Hummingbird! I took more photos using some different lighting and here are the results. If more pics of specific areas are needed, please let me know of what you would like to see and I will try and post them.


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coop's Avatar
United States
62064 Posts
 Posted 12/14/2014  09:59 am  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
Nice color, but it should be the silver color unless it is toned. The color maybe from something on the front of your camera? But a little use of a diffuser would removed glare from your images. (Note the last two images. The above one is the correct color.)
Valued Member
United States
332 Posts
 Posted 12/15/2014  12:26 am  Show Profile   Bookmark this reply Add amnight to your friends list Get a Link to this Reply
I'm giving it one more shot with these pics. I have done about as good as I am going to be able to do. Thanks for the input. It may not seem important but it helps me to learn about this doubling thing... I guess it will just take time...



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coop's Avatar
United States
62064 Posts
 Posted 12/15/2014  11:33 am  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
On the next to last image of the "RT" you can see the machine damage strong on the right leg of the "R". You see the full normal size of the devices and an area that is damaged pushing the device upward. I found a coin that has the similar metal movement and made an mirror image of it and you can see where the metal was pushed upward.
1970-S-Proof-Quarter-DDO?
I can see that same affect on the right leg of the "R" on your coin. Keep in mind that proof coins are struck more than once and often show the slightest misalignment between strikes. The Business strike coins are only struck once. On a doubled die, the die is hub doubled during the die making process. On a machine doubled/damage coin, the die is normal, but die movement during the strike or slight misalignment during the strike make the coin damaged from a normal die. So it can't be a coin from a doubled die.
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United States
24 Posts
 Posted 12/27/2014  3:27 pm  Show Profile   Bookmark this reply Add Hummingbird to your friends list Get a Link to this Reply
Hey amnight, sorry to be so late in replying.

I see that you added the incandescent lighting. Thanks. To me, it did not aid in determining DD or MD. Either way I would never say, by pictures only, that a coin was definitely one way or the other. However, the pictures you provided on the 1957D cent are excellent and shows a darn good example of MD.

Perhaps coop would look at this Proof Quarter in-the-hand?

I'd volunteer, but I feel coop is more knowledgeable and experienced in this area than I.

I have only found 23 DD's in my life time by searching 1,000's of coins, from circulation and mostly from bags. My favorite find, however, was a 1971s Proof Cent in a Proof Set. PCGS Certified/Graded as 1971-S 1C DDO FS-102 (FS-033), RD. I sold it on ebay.

Here's a pic before subbing to PCGS. Not very good, but at least you can see the 1971-S 1C DDO.

http://i620.photobucket.com/albums/...1SPrddo2.jpg

Take care





Valued Member
United States
332 Posts
 Posted 12/27/2014  5:04 pm  Show Profile   Bookmark this reply Add amnight to your friends list Get a Link to this Reply
Thanks hummingbird but I would agree with coop. I trust his opinion and I am learning and have learned a lot from him. 😀
New Member
United States
24 Posts
 Posted 12/27/2014  6:40 pm  Show Profile   Bookmark this reply Add Hummingbird to your friends list Get a Link to this Reply
Yep, I've learned from coop also. He is a great asset to this coin forum!!
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