Yes, some of the debased silver later Roman coins can acquire very colorful patinas due to their very high copper content. Cornelia Salonina, BI...
Oxidation happens to all metals, with the exception of gold. Yes, there are chemicals that remove oxidation, but the fact is that copper, the...
I see what you're referring to regarding the coin's reverse. It is not unusual, based on my experience, for one side of a coin to have color...
I can't really tell based on the posted photo. I coped the photo into Photo Shop to get a larger image of it and I still don't see any signs of...
Here's the chopmarked, test cut, clipped special. Mexico, Philip V, 8 reales, 1744 MF. KM 103 26.4 grams [ATTACH] And a Lima 8 reales cob,...
That's a very attractive sestertius, with a nice strike and central detail. If there is smoothing, it is very subtle. I don't see any overt...
Here's an update: This is an issue of Dimashq (Damascus), c. 670s-690. The symbol under the M is a star that is partly obscured by a die chip....
I purchased this small late 7th century AD imitation of the standing follis of Constans II a couple of months ago, and just got around to...
Here's a contribution for 1745: Ragusa, tallero, 1745. Purchased from Karl Stephens in June 1997. KM 17; Davenport 1637. 28.4 grams [ATTACH]
Here are two contributions, one for 1747 and another for 1746. An 8 escudos, 1447, Lima mint. Assayer V (Jose de Vargas y Flor). [ATTACH] A...
Thanks. I was considering a die shift as a possibility, but due to the differences between the two portraits I didn't think that it was in fact a...
That's a really nice example, one of the nicest that I've seen in while. Congrats (both for the purchase and the coin's removal from the slab)
This coin is a very recent acquisition, and since it has a reverse rooted the central design used on the Athenian new style tetradrachms, it was a...
Nice examples! Nabataea, Aretas IV, and Shuqailat I, Æ 17, Petra, yrs 26-48. [ATTACH] Nabataean, Aretas IV, (9 BC-AD 40). Two AR selas,...
This is my only coin of Nerva. Nerva, tetradrachm, Antioch, year 1 (96/97 AD). Prieur 149 [ATTACH]
Yes, bronze disease can be very aggressive and sometime appear almost overnight. It is very distinctive, white to a very light green, and, above...
You might look into the Irish gunmoney, token coinage issued by James II during his unsuccessful attempt to reclaim the British crown in 1689-90....
That's a very interesting portrait of Philip III of Spain, without his pointy beard. Nice purchase! Here's another rendering. Italy Philip III,...
That's a beautiful medal! Here's an 8 escudos cob dated 1750. Lima, Ferdinand VI, 8 escudos, 1750 R. Purchased from Pat Johnson. Salvaged from...
Chile, Ferdinand VI, 8 escudos, Santiago mint, 1751 J. Salvaged from the Nuestra Senora de la Luz. KM 3. Purchased from Pat Johnson in May...
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