Is this improperly annealed/Improper alloy mix? one of those Black Beauty kind of things, even though it's not a vintage 1958 or 59? toned, chemical damage just environmental damage? Something else entirely? etc.. What do you experts think? Is it a spender or a keeper? coin in question on the right. Here's a sample of the surface quality of the reverse of the word united, under the microscope. I also want to post a picture of the rim, which I'll do in a little bit if needed or if anyone wants to see any other angles of it let me know.
It looks like environmental damage to me. The parallel striations shown in the close-up are indicative of die deterioration. Chris
Here’s images of the rim and some more higher quality images that the initial post and slightly different lighting and angles to show the shine on it. And with a follow up question, to the initial response with regard to the metal flow lines (striation) if it were environmentally damaged, wouldn’t the flow lines be damaged with it? Or is it possible to still have the metal flow in the damaged areas? Just trying to clarify for myself. I was trying to show with microscope images that the striation was in tact, not particularly warn in anyway into the black areas, but if that is incorrect thinking, please correct me!
It's environmental damage. An improperly mixed alloy even improperly annealed would not look this way.
Most discolored coins found in circulation are going to be environmental damage. Check the coin talk archives for some threads that discuss how to determine improper annealing by examining the edge
I have many with a similar appearance—perhaps as many as 30. Quite seriously, if you are looking to collect Jeff nickels with that sort of effect, PM me and I'll be happy to oblige.
Thank you! I try to make sure they are clear and accurate I'm an illustrator by trade so I know how to somewhat work a camera haha.
