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Counterfeit 1870 - Liberty Seated Dollar

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jacrispies's Avatar
United States
3722 Posts
 Posted 01/17/2024  3:27 pm  Show Profile   Bookmark this reply Add jacrispies to your friends list Get a Link to this Reply
Trying to identify the reverse die pair will be close to time wasting, because trying to identify such small markers is nearly impossible on such a circulated coin. Take a look anyway just in case. That die line between the leaves is likely the only visible marker.


Quote:
What Judd # is the OC-6 pair?

Same Judd number as all the copper ones, 1020.


Quote:
I'm going to have to get an expert to evaluate. Any recommendations?

Since utilizing an expert would consume time and shipping costs, I would recommend the next step be to XRF the coin. If it has a silver core, then that solves the mystery.
Suffering from bust half fever.
Want to learn how to attribute early half dollars by die variety? Click Here: http://goccf.com/t/434955
Shoot me a PM if you are looking to sell bust halves.
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kbbpll's Avatar
United States
4233 Posts
 Posted 01/17/2024  3:49 pm  Show Profile   Bookmark this reply Add kbbpll to your friends list Get a Link to this Reply
I don't think we've determined whether or not this is on a thick planchet. It's not clear to me whether "They were struck in the following combinations on both thick and thin planchets" from uspatterns applies to all of the compositions. A normal 1870 $1 should be 2.8mm thick. If this coin weighs the same as a regular 1870 (26.73 g) with the same diameter, then in order for it to be copper it has to be thicker. Silver is 1.17 times denser than copper so I'd expect somewhere around 3.25 mm if 'm doing the math right.
Valued Member
United States
134 Posts
 Posted 01/17/2024  4:03 pm  Show Profile   Bookmark this reply Add PaulyD to your friends list Get a Link to this Reply
I'll try to get a measurement
New Member
goldendreams's Avatar
United States
10 Posts
 Posted 01/17/2024  9:28 pm  Show Profile   Bookmark this reply Add goldendreams to your friends list Get a Link to this Reply
Very interesting thread, and coins too.
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DOCC's Avatar
United States
1255 Posts
 Posted 01/18/2024  01:13 am  Show Profile   Bookmark this reply Add DOCC to your friends list Get a Link to this Reply
PaulyD - if you have a metal recycling plant nearby give them a call. They typically have XRF machines and usually charge a nominal fee to pull the trigger. Jewelry/Pawn shops almost exclusively have the cheaper Sigma machines and those do not penetrate more than a few microns - any readout of copper would be inconclusive if coin is plated. You'll want access to a higher end XRF that reads thru.
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