I'll give it another night to see if Paddy has some more speculation, otherwise I may repost it under a new title that may capture the attention...
This is a very good question, and definitely not one I am familiar enough with upsetting mill process to answer. In the new pics, it looks like...
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I agree that "defective planchet" seems like an umbrella term for a multitude of planchet errors. I have never personally seen it used in this...
Go for it!!! Maybe you'll find something fun
Very interesting. Not sure I am familiar with that specific error type or what would cause it. Could someone send a link or an error ref article...
I see the use in slabbing it, and personally find it very cool.
If it were a copper small date d it would be a major error and worth slabbing, but in this case it's just a spender!
Check out the edge of this Ike dollar. Can you tell me if this is an error? I believe it is and I think I have diagnosed what kind of error it is,...
Very interesting information, as always!
Many thanks to those who have commented! I will try this with some nicer coins I have with PVC damage. How long do you tend to soak coins? Yep,...
Very cool. Interested to see what VAM they are
By soak do you mean leaving it in there for longer? Like overnight?
I appreciate the lengthy and informative response! I have quite a background in chemistry so your reasoning makes sense. For some reason my...
Wow! I've never seen a Greek coin so small! How cool.
Exactly what I see.
Tough without closer photos. I think RPM-004 as well or RPM-002.
Hmmm looks like a broadstrike (struck out of collar) to me but the photos are dark. Not exactly sure what you see in the 2 o'clock area.
This is after acetone. Some went away not all. Do you think this can spread? I think I better not dare test it haha.
[ATTACH] [ATTACH] A large Ming Dynasty 10 cash, 47mm (20.8 grams). Tentative ID: 1621-7 Tianqi Emperor (Ming Dynasty) 10 Cash, with Shi and...
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