No, not at all. Maybe the seller did some oxidation process or heated the coin to accelarate the process, but this kind of color appears also...
If you are lucky the blue color comes back with time. Here is a maybe better link for the color formation:...
IMP MAXIMIANVS P AVG for 398 and IMP MAXIMIANVS AVG for 399 (your coin)
The color is not a real color but an optical effect caused by thin layers (e.g. an silver oxide or a sulfide layer). Like an oil-film on water or...
[ATTACH] Cn. Lucretius Trio. AR Denarius, 136 BC, Rome Obv: TRIO, Helmeted head of Roma right; X (mark of value) below chin. Rev: CN LVCR / ROMA,...
First one is a Diobol from Pergamon: https://www.acsearch.info/search.html?id=5049717 second is from Kyzikos, the tunny is not visible, but you...
11, but that is nothing compared to Gorny who list around 200 variations for Yuan Feng, running script, 1 cash. BTW, the coin listed by dougsmit...
I disagree with the attribution of 16.198. The writing of the Xi is definitely different. (look at the left segement) This variation is not listed...
[ATTACH] Mark Antony Denarius 32-31 BC Obv.: ANT AVG III VIR R P C, Galley right. Rev.: LEG XV., Aquila between two legionary standards. Ag,...
Baktria, like this: https://www.acsearch.info/search.html?id=234538
[ATTACH] Thrace, Thasos Obol 463-411 BC Obv.: Two dolphins swimming in opposite directions, three pellets Rev.: Quadrapartite incuse square Ag,...
[ATTACH] Salonina c. 259 - 260 A.D. Billon antoninianus, Colonia Agrippinensis (Cologne, Germany) mint Obv.: SALONINA AVG, draped bust right,...
[ATTACH] Antoninus Pius (Reg. 138-161 AD) Posthumous Denarius,161 AD Obv.: Divus Antoninus Pius / Laureate bust r., drapery on l. shoulder. Rv:...
""Wan Shou Wu Jiang" "Ten thousand years of boundless longevity” and "Tian Xia Tai Ping" "The world is peaceful" Probably a Qing charm. Both...
Yes, I forgot this one: [ATTACH] and bought this one: [ATTACH] If it is not a die match, that is the reason to keep both, and if it is a a...
Pegasos forepart, Price 44. http://numismatics.org/pella/id/price.44 [ATTACH]
[ATTACH] Nero Alexandria Billon-Tetradrachm Obv.: NEΡΩ KΛAΥ KAIΣ ΣEB ΓEΡ AΥ LIΔ, radiate bust left wearing aegis; L IΔ below year 14 (67/68)...
This is mine. I like the unusual, baroque like, depiction of Apollo: [ATTACH] P. Clodius M. f. Turrinus AR Denarius, 42 BC, Rome Obv.: Laureate...
Exactly, so whose face was defaced, the king's or Athena's ? Here are two official examples and two ancient imitations. To which category does...
The style is odd. Possibly an imitation. There are are quite a lot of celtic imitations of this type. Athena, not the king
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