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 Replies: 32 / Views: 4,329 |
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Bedrock of the Community
United States
10034 Posts |
Any ideas about this?   |
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Pillar of the Community
Canada
1731 Posts |
It might take it away alittle bit... what is that on the coin?
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Bedrock of the Community
 United States
10034 Posts |
I have no idea. It has been this way ever since my grandfather had it given to him by his mother (I am 49). Any ideas how to help this little lady?
How much squash could a Sasquatch squash if a Sasquatch would squash squash? Download and read: Grading the graders Costly TPG ineptitude and No FG Kennedy halveshttps://ln5.sync.com/dl/7ca91bdd0/w...i3b-rbj9fir2 |
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Bedrock of the Community
Australia
21786 Posts |
This is an excellent coin with risks attached to it, no matter what you do.
Do nothing: that green layer looks 'orrid!
Do something:
a) Verdicare: It may have some effect, but with that much green gunk in may not. Would the other non green areas also be affected?
b) Try something the ancient coin guys do: leave submerged in virgin olive oil for some months, inspecting it on a regular basis. Olive oil is slightly acidic and is used by the ancient coin guys to clean ancient Roman coins, especially late Roman bronzes. Same question about non green areas remain.
Because olive oil is only mildly acidic, the reaction only proceeds very slowly, so you can 'cop out' if you don't like the trend in the cleaning process.
A common problem with the removal of verdigris is that it has scarred the metal underneath it. What do you do? That scarring may be there, irrespective if you remove the green or not. Success may depend on luck on how bad that scarring may be, and you won't find out until the green has been removed.
You are shot down if you do, OR if you don't!
The philosophy of cleaning ancient bronze coins is different. They are dug up in hoards, and the whole lot are treated in bulk. You just throw away the failures. Here, you have only one shot; you have only one coin to have a go at.
Edited by sel_69l
02/07/2012 06:29 am
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Valued Member
United States
268 Posts |
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Pillar of the Community
United States
1432 Posts |
I have never tried Verdicare yet. I have an 1837 Half Cent token in similar condition and after a 2 day acetone soak there was no change. Hopefully BadThad will offer an answer to your question or his suggestions. Try a pair of blue blocker sunglasses, the green will appear more brownish  |
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Pillar of the Community
United States
3278 Posts |
Looks like some full blown corrosion there. I doubt vericare will do much although it may diminish the fringes of the problem. We'll see?
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Pillar of the Community
United States
3276 Posts |
Have not tried Verdicare yet, but from what I have seen, I believe it is for smaller jobs than this. It may help this coin a little but it wouldn't fix it completely.
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Pillar of the Community
United States
3755 Posts |
Verdi Care will help, but it wont cure. Acetone is good only for adhesives and PVC and the like. The olive oil thing is also a possibility as mentioned. I would soak it in Verdi care for a couple days and see where you stand.
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Pillar of the Community
United States
8516 Posts |
Let us know what you do and the results.
Oregon coin geek.....*** GO BEAVS ! ! ! ***
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Bedrock of the Community
United States
10034 Posts |
Thanks for all the help in this. After reading the different alternatives, I think I will try the olive oil first. ... will also post after-pics. Quote:
Try a pair of blue blocker sunglasses, the green will appear more brownish  How much squash could a Sasquatch squash if a Sasquatch would squash squash? Download and read: Grading the graders Costly TPG ineptitude and No FG Kennedy halveshttps://ln5.sync.com/dl/7ca91bdd0/w...i3b-rbj9fir2Edited by Earle42
02/08/2012 11:27 am
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Valued Member
United States
268 Posts |
Post pictures of the after affects of it in olive oil
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Bedrock of the Community
Australia
21786 Posts |
Only problem with treating ancients with olive oil immersion is that it takes a very long time.
With the treatment of freshly dug up ancient bronze coins, is that they may need immersion for a year or more, for the process to be effective.
For this '52 cent, it could be a safer way to go, because the process proceeds so slowly, and you can 'cop out' of it without a hasty decision. Either way, I think this poor old coin may still be caught between a 'rock' and a 'hard place'.
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Bedrock of the Community
United States
10034 Posts |
I can be patient. Asked the wife to pick up some olive oil!
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Pillar of the Community
United States
4132 Posts |
I think you want extra light and not extra virgin, as it's just the purified oil and will have less other stuff (the stuff that makes olive oil good on salads but probably not good for your coin.)
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Valued Member
United States
268 Posts |
It is still a nice looking coin earle42  but it has the green/blue  |
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Replies: 32 / Views: 4,329 |
Posted 02/06/2012 10:36 pm
