Good advice for modern coins; but this is the ancient coin board and many, if not most, ancient coins are cleaned to some extent.
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That coin will most likely not clean up nicely.
Yes, LMCC (The London Mint of Constantius and Constantine.) does that. There is a new edition coming out soon, so wait to buy it. I have a London...
Nice post. I just bought a Tancred partly in honor of my grad school advisor Dr. Haas who passed away last year. He taught a great course on the...
It is a field mark and this series has many including stars, wreaths, palm branches and Chi-Rho's. Here is mine with two Chi-Rho's-- one center...
This coin is even more interesting because the ancient writer Photius tells a story of how Constantine had to fight a lion...even though I don't...
Yes, it is pretty rare. There are only four examples on acsearch (this one isn't up yet) and none as nice as this example.
Speaking of his last issue, here is another recent pickup. A posthumous issue struck by Constantine; who seemed to forget how Maximianus stabbed...
I just won this one-- [ATTACH] Constantine I A.D. 310-13 22mm 4.2g CONSTANTINVS P F AVG; laureate and cuirassed bust right SOLI INVICTO...
here is an unofficial overstrike that is pure ugly and delightful at the same time. [ATTACH] Constantine II GLORIA EXERCITVS maybe Lyon mint...
A new acquisition...no doubt it will be in my top 10 for the year. RIC says that this type; which was reserved for Constantine alone, suggests...
[ATTACH] Constantius I A.D. 296- 297 CONSTANTIVS NOB CAES; laureate head right, H under bust. GENIO POPVLI ROMANI; Genius standing left, modius...
Before and after using precisely the method I described above. Treated in 2012, and years later and the coin is fine. This is just one example of...
Yes, I have some and don't ever use it as there are much easier and safer ways to treat BD, that are very effective.
Great...I have been cleaning coins and treating BD for 30 years as a professional.
You can tell by the color what it is. No, the chemicals are completely safe. I just posted a picture of Arm & Hammer Super Washing Soda that is...
Any treatment for BD could possible change the way the patina looks; so I always start with as mild a treatment as possible. I first start with...
be careful...that spot on the rim looks like bronze disease.
Yes, smoothed. Here it is in 1999 when it sold for $1583 [ATTACH] In 2022, it was sold by ROMA for $21,399. The lengthy description is...
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