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 Replies: 9 / Views: 10,289 |
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Pillar of the Community
United States
2335 Posts |
I found a tube of Deller's Darkener in the estate I've been working with. The tube had been opened & I've suspected that some of the copper coins had been treated. Yesterday I finally got around to doing a close examination of a half dozen Large Cents. These are common date cents that range in condition from G(damaged) up to EF. I believe 5 out of 6 have been treated with the Deller's. These are low value enough that I'll probably try an acetone soak to see if that helps. Does anyone have any experience with removing Deller's? I also have a 1922 plain LWC form the same collection. I'm not a LWC guy but it appears to be VF-EF condition. It's in a capital plastics holder & I haven't had the time to take it out to examine it closely. It's dark enough that I suspect it has been treated with the Deller's. I don't want to take any chances with this coin because it's worth a good bit of money if authentic. Any suggestions? |
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Pillar of the Community
United States
4897 Posts |
The wizardcoin site says olive oil will remove Dellers but it may take several attempts.
I really don't know though as I have never used the darkener.
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Bedrock of the Community
United States
11951 Posts |
I am interested how this will turn out ..
Curious if you take the darkener off will it reveal a cleaned coin.
Does the 1922 plain have a strong reverse (full wheat lines), there are
different varities of the 1922 no D cent
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Bedrock of the Community
United States
20753 Posts |
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Bedrock of the Community
United States
19935 Posts |
Xylene would be a better choice IMO.
Lincoln Cent Lover!VERDI-CARE™ INVENTOR https://verdi.care/
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Bedrock of the Community
United States
20753 Posts |
I suggest you leave them all as is for now. Try to find out exactly what you have, what condition they are in, possible miscellaneous error coins, etc. That is why I suggested coppercoins web site just in case you do have something of value more than you know. Don't try to remove or clean or do anything until you really know what is what.
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Pillar of the Community
United States
860 Posts |
There is probably no remaining Deller's remaining on the coin. It was basically a petroleum jelly carrier with sulfur flour ( flowers) mixed in. The sulfur would produce the darkening, and the carrier would evaporate or absorb to any mounting album over the years. Right after application, a person could lighten it by removing some of the layer with a colorless oil or a solvent if more was to be removed. Many would dilute it with a lot of vaseline to get lighter coats.
Interestingly, I live near the Mexico border and the pharmacy at Target has started a section of Mexican "cures" , and one is a 10% sulfur in a vaseline/ointment base for acne. It would make a good Deller's type AT darkener.
Jim
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Bedrock of the Community
United States
17884 Posts |
10% sulfur in vaseline has long been a treatment for scabies, a skin disease. It's basically because sulfur has good antibacterial properties. Before the discovery of Penicillin, sulfur compounds were used to treat wounds to prevent infections.
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Pillar of the Community
United States
1781 Posts |
For a coin to be treated with Deller's it MUST be cleaned first to strip off the protective barrier of oxidation that is there even if you can't see it.
Bottom line is if you strip the Deller's off you'll end up worse off.
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Bedrock of the Community
United States
12057 Posts |
Call it "sulfur black" in the EAC community, that particular shade of color.
To me, at least, it is no more desirable than a copper bottom pan shade of red as seen on a polish/copper cream job.
Member ANA - EAC - TNA - SSDC - CCT #890 "Most of the things worth doing in the world had been declared impossible before they were done." -- Louis D. Brandeis |
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Replies: 9 / Views: 10,289 |
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Posted 06/10/2011 08:58 am
