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Replies: 25 / Views: 4,048 |
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New Member
United States
1 Posts |
Hello folks. I don't want to hijack the the thread but I am new here and looking for a little help on a topic close to this one. If you can point me in the right direction I'll not bother you further. I recently inherited a belt buckle on which my Dad epoxied half-a-dozen Morgan dollars. I loved my Dad dearly, but this "thing" is REALLY ugly and I would like to see the coins returned to something more in line with their history, so I have two questions: 1) Can you tell me how to remove the coins without damaging them? If the answer to "1" is "get a professional to do it", then 2) Can you point me to a professional that can do it? I have seen reference to "NCS" which I assume means Numismatic Conservation Services or something of the sort, but I do not find them with a google search of "NCS". Thanks in advance for your assistance. Paul
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Pillar of the Community
United States
1372 Posts |
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Pillar of the Community
United States
1372 Posts |
I bought 5 large cents from a seller in Missouri, and after getting the first one, I reallized that it had been coated with varnish or lacquer. I used lacquer thinner and it melted right away. Then soaked it in acetone for a few minutes and patted it dry. I got the 4 others today, and while they too had been clearcoated at some point, they also have a fine film of PVC contamnant on them. Don't fool yourself....those staple type coin holders will damage a coin left in them for 40 years if they aren't kept dry.
I've been applying zip strip and letting it work for 15 minutes or so, soaking up the stripper with a paper towel, blotting it with pressure which is lifting the pvc from the coin. I'm finished with 2 of them and they came out well. I'll be posting pictures of them when I'm done in the classic coins sub category, in the thread "Large Cents 2 acquisitions for my Dansco" or something to that effect.
Chance
Edited by Chancellor Sutler 11/02/2011 1:39 pm
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Pillar of the Community
United States
2044 Posts |
I didn't know until I just looked it up, Ceylon is now called Sri Lanka. A small island off of the coast of India.
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Bedrock of the Community
United States
19966 Posts |
Always start any conservation project by following the solvent polarity ladder. Soak in the following, in a covered, glass vessel for 24 hours each:
1) distilled water 2) aectone 3) xylene
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Valued Member
 United States
115 Posts |
Hi BadThad,
Thanks for your reply. I feel comfortable trying the distilled water, however I don't think I'm up for the solvents. I've read that acetone can have an effect on the surface/toning and that the materials it dissolves can be redeposited on the coin as it is removed from the solvent. Is any of this true, and if so, how is it to be avoided? Thanks for pointing me in the right direction.
If anyone has had experience with NCS with this type of job, please chime in on how it all turned out!
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Pillar of the Community
United States
526 Posts |
Rinse with fresh Acetone after removing from the bath and then rinse with Distilled water.
Edited by Freedom 11/03/2011 09:35 am
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Bedrock of the Community
United States
12437 Posts |
Quote: I've read that acetone can have an effect on the surface/toning and that the materials it dissolves can be redeposited on the coin as it is removed from the solvent. Acetone will not harm the metal surface or patina of a coin. However, acetone can potentially reveal discoloration underneath a surface coating. The patination on your coin is fairly uniform so that should not be an issue for you. After you soak a coin, always rinse with fresh acetone afterwards to remove any residual residue.
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Valued Member
 United States
115 Posts |
Thanks Freedom and biokemist6! So far, I've done the following to the coin:
Soaked in distilled water for three hours Rinsed with acetone Soaked in acetone for 5 minutes Rinsed with water and still soaking (will go at least 12 hours)
I will repost with fresh pics. There's more red now coming out, but the difference isn't huge yet, but it's a definite improvement!
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Moderator
 United States
189340 Posts |
Quote: Rinse with fresh Acetone after removing from the bath and then rinse with Distilled water. There is no need to rinse with distilled water. The fresh acetone will completely evaporate without needing to rub, dab, or wipe. One cannot say the same of distilled water. They key is the fresh acetone rinse, as the soaking acetone can leave residue as mentioned above.
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Valued Member
 United States
115 Posts |
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Bedrock of the Community
United States
19966 Posts |
Looks like it is less glossy. Do you think you got it all off? Now I see some light verdigis around the hair. Do you have any VC?
Lincoln Cent Lover!VERDI-CARE™ INVENTOR https://verdi.care/
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Valued Member
 United States
115 Posts |
Hi BadThad, Yes, it been through VC and very lightly rubbed with microfiber. I think it is just a combination of the patina and a bad picture. I had to resort the the cellphone camera for this close-up, but it is pretty accurate (discount the noise in the image): 
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Moderator
 United States
189340 Posts |
Looks great! 
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Bedrock of the Community
United States
19966 Posts |
Agreed, it looks a lot more natural now....nice job!
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Replies: 25 / Views: 4,048 |
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