So I need some help. I have looked on the forum for ways of trying to remove bronze disease but have never tried it before. So some advice from those who know more about it than I would be helpful. I just got this in the mail yesterday. From the seller pics the green was darker and I thought it was just some patina or something. When I opened it, it was much brighter green like bronze disease. The coin I would prefer not to return due to the fact I don't come across many Roman Emperor coins from Miletos often and this one seems pretty scarce. So tell me what to do to kick bronze disease's butt NERO AE22 Miletos 54-68 AD Magistrate Ti. Damas ΣEBAΣTOΣ, Laureate head right. MIΛHΣIΩN EΠI TI ΔAMAΣ downwards to left and right of Apollo standing right holding bow and stag. RPC I 2713, BMC 148, Paris 1876 5.09 grams 22mm Post some coins you've treated for bronze disease.
I have been fighting the good fight, against bronze disease, on numerous coins and they don't look exactly like that (though it may be the lighting). When you scratch it with your finger nail does it flake off? If so, 1st thing get it in some distilled water...
Not to get lost in the fact that; that is a good looking coin homie! The portrait is fun and unique, ina good way. And the reverse is super fun and also unique. If it's bd then you'll kick its bu77. But if not that is a saweet patina. Jus sayin...
But if it's not flaking off then there is a good chance that it's not bd. That's some good news. Could you take some pics with more light on the coin?
I have no diseased coins, or Neros, but I have a coin with the same bright green deposits, I think yours look cool and add real character to the coin. Ive posted this a couple times already: Licinius I
For now I would recommend setting this aside and using these photos to look out and see if it progresses. If after 6 months it doesn't then leave that sweet lil doozy alone and let him free range with the rest of your coins...if you do see it progress, put it in distilled water for a couple of days and scrub it with a toothbrush, repeat. But I think we may just be looking at a really cool coin
Luckily, I think you’re looking at dark green deposits rather than active bronze disease. Do like @Ryro detailed, set aside and monitor. If it progresses you can use the distilled water method. Great coin as is though. Very cool.
Alright thanks guys. Maybe I jumped the gun here. But thats why I ask first before doing anything. I will monitor it and make sure it doesnt spread.
Yeah, I think your good. This Justinian I follis looks like it has BD, but none of this stuff flakes off at all. I still get it out and check it every one in a while.
Many coins patinate that way. Here's an example that is definitely NOT afflicted with bronze disease: Julia Domna, AD 193-211. Roman Æ As, issued under Caracalla, 10.36 g, 24.3 mm, 7 h. Rome, AD 213. Obv: IVLIA PIA FELIX AVG, bare-headed and draped bust, right. Rev: IVNONEM SC, Juno standing left, holding patera and scepter; peacock at feet. Refs: RIC 599b; BMCRE 224; Cohen 89; RCV 7129; Hill 1354.
I'm not claiming expertise in anything anymore but will show a coin with BD. If you touched it with a toothpick, green powder came off. I said touched --- not dug at, gouged or excavated. In addition to BD, this reverse suffered from a problem deciding which way was up. I should reshoot it someday when I am more certain it is finished. I believe the seller knew it had a problem and had painted over it as seen in the first photo. I know one of you collects these. I stopped when I stopped buying from this seller.