Bit late, but this is also most likely horn silver. I think the denarius of @Limes posted after your coin must have looked similar prior to...
Could someone point out why this is a fake? Are the three pictures above three different coins? Am I missing something?
As an epidemiologist, I really like these kind of data analyses. However, I believe there are some flaws in your statistics. First, since your aim...
Every time I look at this antonianus of Philip I 'the Arab' it makes me happy: [ATTACH] ROMAN IMPERIAL, Philip I ('the Arab'). Denomination: AR...
AgCl + 2Na2S2O3 → Na3[Ag(S2O3)2] + NaCl https://chemiday.com/en/reaction/3-1-0-2154 also, the relation between temperature and the solability:...
Thanks @AncientJoe!
Hi Richard, definitely horn silver. The rough surface around is not a good sign. The sharp margins and the scratches are indicative of mechanical...
Sorry, a bit late. But this coin has horn silver deposits on it and would greatly benefit from soaking in a sodium thiosulphate solution. Also, a...
@EWC3 classifies it in the same way as I see it. If horn silver is deposited on the coin (e.g. part of a coin hoard where the outer coins...
Thanks all for the compliments. Feel free to post coins with deposits that you consider to clean, if you want my advice (or someone else)....
[IMG] BRITTAIN, Henry III. Denomination: AR Penny (phase III, class 3d1 (halved)), minted: England, Canterburry. Moneyer Nicole; 1250-1272 Obv:...
Hi @gsimonel, if you search for "horn silver" and filter on my user name ("roerbakmix"), you will find several threads where I post a more...
Thanks @Only a Poor Old Man. To answer your question: yes, it is relatively easy, but recognizing which coins benefit from cleaning, and which...
Together with a friend, I bought this coin of Hieronymus of Syracuse, with the intent of restoring it, and then resell it: [ATTACH] HIERONYMUS OF...
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