Ren wax is easily removable with acetone and acetone evaporates quickly and completely - which is why you must be in a very well ventilated space...
Nice Tang-era Qian Yuan Zhong Bao ryro. SC
Very nice Beau1010. Amazing that you have found all that stuff. I envy you being in a place where that is possible. By the way, I suspect that...
That's just a coin struck on a flan that was too small. This is very typical for the 4th series of Few Temp's like this. The only weights made...
Beautiful and fascinating coin. In the late 4th and early 5th century many earlier coins still circulated if their size matched that of the...
It looks "Roman" to me - to include late Hellenistic and early Byzantine as well as Roman proper, they are almost indistinguishable in many...
I'd try vcoins. There are often small antiquities there. The dealers code they have to ascribe to means that even if it turns out to be fake you...
In my experience, hoard find reports all tend to show that the smaller "barbarous radiates" are most often imitations of types of the two Tetrici,...
Not all "silvering" found on coins today is the result of the original silvering process. Some of it can come from burial and post-burial...
Personally, I would break it out of that holder and check the green. Looks like at least some of it is hard green malachite which is safe. But...
What I do with such coins is ensure they sit on a pad of thick felt or cotton (like the pads used to remove make-up) cut to fit the tray. And be...
Because the heating required would be towards the melting point of silver. Embrittlement problem solved. Coin a blob. Not a good trade off. SC
I agree with gsimonel. There are corrosion products that build up on a relatively stable surface near to the original surface, and can...
Yes Ag2O is a surface oxidization product, not the cause of embrittlement or crystallization. SC
It's a process called "embrittlement" whereby there is a very slow reaction between different elements in the metal matrix that were imperfectly...
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