So there's a very rare coin, high on my want list, in an upcoming auction. It's drawback, appropriately disclosed by the auctioneer is "Refilled corrosion spots, otherwise, good fine". I'm not so much concerned that pits have been filled - it doesn't detract from the overall look of the coin. I'm more concerned about lingering hidden bronze disease - especially as the coin is likely to have a hammer price in the thousands. Is there any way to tell? Or, is there nothing to worry about as long as there is no visible disease? (I understand water and oxygen are required for bronze disease reactions to occur - if there's hidden corrosion with no contact with the air, then all is good?)
Gosh, it's hard to say Greg. I don't think you can know for sure. Depending on the seller, you may want to ask them as they might know. It's good they are disclosing it at least. Btw, I'm in Cairns as I write this overlooking Smith's Creek and enjoying a glass of wine, waiting for the fruit bats to start flying. I know, like a big deal that we're on the same continent but I'm usually NOT in Australia. We're here for our Summer adventure...Brisbane next then Fiji before heading home.
Cairns is lovely. Check out the reefs and rainforests while you're there. I'm further south wintering in Melbourne. Queensland is like our Florida.
Corrosion can start within the coin. I have had loads of AE3s showing a bulge which is the corrosion starting from the inside out. A minute hole in the surface can let it in. I never consider a BD coin cured, only in remission.
maybe it's just me, Smeag => but I wouldn't spend thousands of dollars on a coin that has been refilled
The voices of reason always bring me back to earth I guess I'll wait for the next problem-free Antinous then!
How long ago was it restored? If several years ago then everything is probably fine. If it was cleaned and filled recently, I'd pass.
I'd pass too ...but if you truly decide to let it go and the auction shortly ends, I'm super curious just precisely what coin it is.