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Pillar Of The Community
United States
1534 Posts |
Very nice, acidic1.  That 1964 quarter's a proof, right? |
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Pillar Of The Community
United States
10032 Posts |
Quote:
Those are really nice BadThad, any idea what caused the toning? Toning is caused by exposure to hydrogen sulfide (H2S). The sulfur reacts with the metal surface to form the corresponding metal + sulfur. Light refracts differently based on the thickness of the layer. It's kind of like how light + water droplets form a rainbow. The book Coin Chemistry details H2S and its role in toning very well, it's worth a read. The sources of hydrogen sulfide are many! From bacteria to rotting organic matter.
Lincoln Cent Lover!VERDI-CARE™ All Metal Conservation Fluid http://www.verdichem.com
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Pillar Of The Community
United States
632 Posts |
Yes sir, proof...as well as the 52 cent.
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Valued Member
United States
141 Posts |
Always hard to capture toning in a photo, this looks real nice in person. Any ideas on the spot on reverse in the pillars and in the hair. Just more toning starting, these spots were not there 10 years ago.   |
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New Member
United States
46 Posts |
Man, those cents are fantastic. I come across toned LMCs all the time in pocket change, but it's precisely because I come across them all the time that I never bothered saving them. While the toning doesn't add value like it would to those mint, early-date wheaties, maybe I should rethink keeping every toned coin I come across... Also I'll add one more toned coin from my collection. It's one of the first coins I ever bought myself and pretty valueless (when I was 10 or so, obviously didn't care about that gash on the obverse back then!), but it's an oddity in that it has so much toning despite being so worn. In person, the obverse fields are more blue and magenta:  |
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Pillar Of The Community
United States
1534 Posts |
Nice coins everyone, it does seem to be hard to bring out the toning, so I bet all your coins are even better looking in hand, Here's one of my toned Mercurys. I managed to bring out some of the toning, but it looks much better in hand:   |
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Pillar Of The Community
United States
632 Posts |
I got this from someone on this forum.   |
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Pillar Of The Community
United States
1534 Posts |
Nice coin, acidic1. Are those full bands?
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Pillar Of The Community
United States
632 Posts |
ARRh!...ding in the middle.
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Pillar Of The Community
United States
1534 Posts |
So it wouldn't be considered full bands from a TPG, right? |
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Pillar Of The Community
United States
571 Posts |
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Pillar Of The Community
United States
759 Posts |
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Pillar Of The Community
United States
1534 Posts |
Wow, hadleydog and Podoprigora, that 1909 VDB and Mercury dime are really neat. I don't have any more toned coins, so I guess I'll just have to comment.  |
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Pillar Of The Community
United States
759 Posts |
Edited by hadleydog
09/22/2009 12:57 pm
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Pillar Of The Community
United States
1534 Posts |
Wow the buffalo and morgan are really nice. Is the Buffalo slabbed?
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Posted 09/20/2009 11:55 am
