This is the only S/S I could find. 1944-S/S 50C Allen-15.01a (Regular Strike) U.S. Philippines - PCGS CoinFacts
Maybe feom the electroplating process. Looks like moisture may be involved. Hope someone with more knowledge ways in.
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There is the example of the mule from PCGS.[ATTACH]
From the hoarder house coins.
Here is a better example I found a couple of years ago. [ATTACH]
1960 D RPM-001, 1971 S RPM-002[ATTACH] [ATTACH] [ATTACH] [ATTACH] [ATTACH] [ATTACH]
"Color is uniform throughout the coin and on the edging" OP said it in his post.
82 P and D large date are very common.
I just found these. I need to weigh them, but more likely all are zincoln's.[ATTACH]
Hard to say. Definitely over 10k. I believe there are only two known to exist.
Yes. It's common on 4 corners of memorial building.
Small date shows evidence of a die clash with heavy polishing marks.[ATTACH]
$130 in Pennies retrieved from a hoarder house clean up. The lady dumping them at casino, helped with the clean up and got to keep money found....
Here is one of mine. [ATTACH]
Looks like you need to make a trip to Vegas for coins.
MM position looks correct IMO. Problem is it's a d/d northeast and I don't see it in @potty dollar 1878 photos.[ATTACH]
Here is one that is miss annealed. [ATTACH] [ATTACH]
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