Which is why I don't like bringing stuff with high numeric pH into play with coins. :)
Fair enough, at least we have it defined. Unfortunately, I'm down to 6 hours before the alarm rings and that's my limit for the night. :) Can you...
Um, you posted this in that thread....
The OP coin; I'm not questioning either your knowledge or your opinion of the coins you posted. I see two different stages of toning on it (the OP...
Then where did the brown on the Half come from?
Within the last 48 hours. Thiuorea is a far weaker base than caustic potash. Much of this is going over your head, man.
If we discount the other potential qualifiers of authentication/attribution where the buyer would be more comfortable seeing it in plastic for...
I'm guessing plating bubbles or a similar manifestation where the layers no longer adhere to each other and the outer layer "wandered" somewhat...
Toning color progression on silver has been exhaustively defined to a scientific standard. I would expect it to be somewhat abbreviated, less...
I have no clue what ought and/or ought not qualify as a subvariety. :) Sure would like to see this get into John's hands - or somebody's - for...
Looks like the A1d Reverse associated with 6, 7, 14.5, 14.8 and 14.9. Could we see date, please? Nice detail images! :)
Why, exactly, do you think that the efficacy of a solution is relevant to my choice whether to use it? I do not bring cleaning agents that strong...
Your coins exhibit color progression. His does not; it's yellow/brown adjacent to and touching black, with no other color present anywhere....
I'm just leery of bringing a cleaning agent of that strength into play.
Well, if you're set on the C3f Reverse (seems reasonable), you're down to 3 VAMs - 21, 35 & 47. I think 21 is precluded because of its' more...
The TPG's are displaying historic levels of paranoia about color these days. Despite the fact that you and I find the toning quite believable from...
No, nor will I ever. I'm not letting a coin touch something that caustic. I don't need to.
Almost certainly a bad idea. What's "NGCS?"
With only the date I, for one, am unable to help much. For the record, 14.20's tripling is below the crossbars....
MS70? MS70 contains Potassium Hydroxide (Caustic Potash). If you bring something with the same pH as Lye near my coins, I will shoot you. Here's...
Separate names with a comma.
