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 Replies: 19 / Views: 11,804 |
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Pillar of the Community
United States
987 Posts |
Yes, the tissue test is a good option if you cannot get to a shop to test. |
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New Member
 United States
8 Posts |
I took out my dial caliper and did some rough measurements, the suspect dime measured .043 inches along the axis of the torch pillar on the obverse as compared to .0465 to .05 inches along the same axis in a few samples from the rest of the 1964 Roosevelt dime samples. I have made an inquiry about the possibility of XRF, we'll see what we can drum up. |
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New Member
United States
8 Posts |
did a drop test for the suspect dime, and rang similar to a presume high silver 1964 Roosevelt dime as compared to a 2013 Roosevelt dime with no ringing sound. |
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New Member
United States
8 Posts |
tissue test inconclusive with the same comparative actors with both 1-ply facial, and 1-ply "other"
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Pillar of the Community
United States
5240 Posts |
If it rings like your other silver dime then there is a 99.9% probability it is silver.
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Bedrock of the Community
United States
94367 Posts |
 The thin planchet theory makes the most sense.  to the CCF! Edited by Coinfrog
01/05/2019 3:48 pm
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Pillar of the Community
United States
5837 Posts |
It's a possibility that corrosion may have eaten away tiny bit of the surface, and lessen the weight.
Edit: On second thought, I agree also with thin planchet theory.
Edited by macmercury
01/05/2019 4:03 pm
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Bedrock of the Community
Australia
21788 Posts |
Could be a planchet intended for another country.
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Pillar of the Community
United States
3667 Posts |
A specific gravity test would be conclusive. I posted the steps on another thread a while back. A silver coin should have a specific gravity very close to 10.34 and a clad coin should have a specific gravity very close to 8.92. |
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Pillar of the Community
United States
8715 Posts |
The specific gravity test mentioned by fortcollins should definitely determine whether this is silver or clad. to the CCF! |
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New Member
United States
8 Posts |
Thanks for all of your careful inputs. I don't currently have at hand a scale accurate enough for a specific gravity test. I'll have to give that some thought.
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New Member
United States
8 Posts |
There is a posting in another venue (posting exact web address not allowed here) that shows (photos) a 1.6 and a 1.8 gram presumed thin planchet 1964 Roosevelt dimes. Both have significant appearance alterations involving details around the rim. Notable both have nearly invisible "4" part of the date stamp 1964, as does our sample. Rough thickness to weight ratios of our sample and our other examples seem to be consistent with high silver content. Until further testing (XRF and specific gravity) can be accomplished, thin planchet is looking like a plausible explanation. |
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Moderator
 United States
189767 Posts |
to the Community! |
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Valued Member
United States
175 Posts |
I also found a 1964 dime no mint mark two weeks ago and it weighs 2.25 grams, no sign of cladding and the dropped sounds is like a silver. I was hoping that this underweight coins may be considered another type of variety. |
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Pillar of the Community
United States
2739 Posts |
There's no reason to think it's anything other than a dime struck on a planchet derived from rolled-thin stock. Rolled-thin silver dimes can weigh as little as 1.6 grams.
Error coin writer and researcher.
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Replies: 19 / Views: 11,804 |
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First Page
Posted 01/05/2019 3:01 pm
