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Mar 09, 2007, 04:11 PM
#1
Fingerprints on silver proofs
Is there a safe way to clean fingerprints from silver proofs? I would hate to damage the mirror surface of these half dollar coins.
2008 Halves
$144,579 Searched
Walkers -7
Franklins - 40
Kennedy90% -141
Kennedy40% -968
Proofs - 54
Foreign -22
1987 -13
1970d -1
1926s Oregon Trail Comm
1992 Columbus 500 year Comm
1986 Immigrants Comm
2007 totals-$154,543 searched
1,301 40% 220 90%('34-'6
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Mar 09, 2007, 04:56 PM
#2
Re: Fingerprints on silver proofs
I don't know possibly a careful dip in Acetone. How did they get fingerprints? Proofs are usually sealed in plastic and are not touched in the minting process.
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Mar 10, 2007, 12:47 PM
#3
Re: Fingerprints on silver proofs
I found 6 silver proofs in a coin counting bag that I bought from a bank.
2008 Halves
$144,579 Searched
Walkers -7
Franklins - 40
Kennedy90% -141
Kennedy40% -968
Proofs - 54
Foreign -22
1987 -13
1970d -1
1926s Oregon Trail Comm
1992 Columbus 500 year Comm
1986 Immigrants Comm
2007 totals-$154,543 searched
1,301 40% 220 90%('34-'6
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Mar 11, 2007, 11:59 PM
#4
Re: Fingerprints on silver proofs
(I haven't tried the following, but if you do, you do so at your own risk!)
You could try some rubbing alcohol (on one). It should cut through the fingerprint oils and evaporate off, but how you get off any 'spotting' from the residue is beyond me, unless you blot it with something (non-scratching, of course) like a cotton swab.
And once you get them clean, better pop'em into plastic coin holders...!
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Mar 12, 2007, 12:20 AM
#5
Re: Fingerprints on silver proofs
rubbing alcohol and isopropyl have water in them. Try denatured alcohol and a cotton swab. Roll the cotton swab around, don't swirl or rub with it. Should clean the oils right off wothout harming the surface of the coin at all. Try it on another coin if you wanna be sure.
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Mar 12, 2007, 09:52 PM
#6
Re: Fingerprints on silver proofs
Thanks all for the tips, I will post pics and results when done.
2008 Halves
$144,579 Searched
Walkers -7
Franklins - 40
Kennedy90% -141
Kennedy40% -968
Proofs - 54
Foreign -22
1987 -13
1970d -1
1926s Oregon Trail Comm
1992 Columbus 500 year Comm
1986 Immigrants Comm
2007 totals-$154,543 searched
1,301 40% 220 90%('34-'6
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Feb 07, 2008, 03:10 PM
#7
Re: Fingerprints on silver proofs
I've been using Windex glass cleaner. I spray it on and gently wipe it off and it seems to work very well. Should I not be doing this? I just want to get the finger prints off.
Go right for sirens and lights!
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Feb 07, 2008, 04:59 PM
#8
Re: Fingerprints on silver proofs
 Originally Posted by Hydrantman
I've been using Windex glass cleaner. I spray it on and gently wipe it off and it seems to work very well. Should I not be doing this? I just want to get the finger prints off.
Anytime you wipe, you run the risk of scratches. Rolling a cotton tip swab, or even daubing (patting) is less risky.
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