I said I was lousy with pictures!!!
Almost all ancients have some degree of cleaning. I think potassium hydroxide is one of the agents in MS70.
The "sniffer" doesn't really "sniff" coins, but uses reflective infrared to detect organic materials on the surface. Similar machines I have used...
I would love to have an Athena/Owl Tetradrachm, but don't want to put out the money just yet. I saw this coin - a small bronze - on fee-bay and...
Yes, if you are sending in coins for grading (any TPG) I would not have Verdi-Care on them. If you use it to remove verdigris, I would remove any...
Actually since Verdi-Care also serves as protection, it should come in last place.
yup
Ugly, odd, eeehhh [ATTACH]
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