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 Replies: 14 / Views: 1,729 |
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Valued Member
United States
111 Posts |
I was able to pick this up pretty cheap. First coin I bought in a long time, which makes makes me officially back into penny collecting I guess! only two Lincoln pennies left. plenty of indian heads to go. I wanted to ask what's with the S? there's clearly metal in between the upper hole of the S and some weird markings in the lower hole of the S. one of the images is composed of several images at different focal distances and stacked together for the 3D view. Can anyone help me figure it out? Thanks.    Edited by themetallurgist
07/08/2014 11:37 pm
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Pillar of the Community
United States
2824 Posts |
Edited by OcalaFlorida
07/08/2014 11:50 pm
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Valued Member
 United States
111 Posts |
the limited research I have done is that the S/S RPM is found for the large dates, not the small dates... the RPM seems to be shifted north, but I don't see it along the top. is it worth sending in for grading? never done that before, so I don't know what to expect to get from PCGS or NGC.
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Valued Member
United States
111 Posts |
Edited by themetallurgist
07/09/2014 12:04 am
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Pillar of the Community
United States
8517 Posts |
Dang brocephus, nice pics !
Oregon coin geek.....*** GO BEAVS ! ! ! ***
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Pillar of the Community
743 Posts |
That has to be the closes mm picture I have ever seen! Great photos!!
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Moderator
 United States
56855 Posts |
Great pics,what are you using? The MM looks normal to me for the date. John1  |
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Bedrock of the Community
United States
62064 Posts |
 The punch used that year was damaged and made the lines you are seeing. It is a small date though. So many times people ask and we have to say no, nut yours is the real deal. Nice 3-D shot. |
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Pillar of the Community
United States
1300 Posts |
I do loke that 3D shot as well!! How cool!! Lol I dont think I've seen a image that compares!!
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Pillar of the Community
United States
663 Posts |
I just opened a couple of rolls of uncirculated 1970s cents and most, if not all, had the same "s" issue.
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Valued Member
United States
111 Posts |
Thank you for all the feedback! The photos were taken with a Keyence digital microscope at the lab I work at. Otherwise there's no way I could afford it! There are other cheaper systems that can stack like that, but still quite expensive. I also run a scanning electron microscope that goes up to 5000x magnification with great resolution. It can also analyze the elements present. I analized some of the areas of toning and got back slightly higher oxygen levels than baseline.
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Pillar of the Community
United States
2775 Posts |
I too was so inspired by the MM image.  So much so I had a talk with my camera last night and said see this picture, lets do this. I swear, the camera responded with battery low and turned off. Thanks, Doug. |
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Pillar of the Community
United States
663 Posts |
Wow! You can analyze areas of the coin and detect elements?!?! That's pretty cool! What kind of work do you do?
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Bedrock of the Community
United States
62064 Posts |
Those 3-D images do help. Here are a couple images from the Coin Fishin' 11 showing the doubled die on the 1949S-1DO-001. You can see the two different shapes of the date. The explanation on how this happened is on the Coin Fishin' DVD   If you have an older version you can check it out again. The images were from Ray Parkhurst on LCR. |
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Pillar of the Community
United States
1300 Posts |
I like that effect.  |
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Replies: 14 / Views: 1,729 |
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Posted 07/08/2014 11:19 pm
