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 Replies: 38 / Views: 6,203 |
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Pillar of the Community
United States
6130 Posts |
I had a few coins that I found at the beach, but those all went into a roll and were spent years ago. The saltwater was not kind to them; most I couldn't even make out the date!
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Pillar of the Community
 United States
6514 Posts |
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I think someone took a phillips head screwdriver to this one. No joke.  Check out my counterstamped Lincoln Cent collection: http://goccf.com/t/303507 |
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Bedrock of the Community
Canada
24885 Posts |
2000 Solomon Islands. Olympics sailing. Dollar.   |
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Bedrock of the Community
Canada
24885 Posts |
1657 Spain cob coin 8 maravedis.   |
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Pillar of the Community
Belgium
1185 Posts |
interesting thread The piece below is not a gold coin, but a 1568 silver taler from Cologne that was mounted in a "coin-friendly" manner via a band holding the coin in place. The surface of coin and bezel was then gilded using a mercury/gold paste painted on the coin; heating above a fire caused the mercury to evaporate so that a thin layer of gold was left behind. At least 90% pure silver is required for the gold layer to hold firmly. The French call this surface modification vermeil. Total weight of the piece (taler+gold sheet +ring around coin) = 34,16 g. The overall effect is the impression of a massive one ounce gold coin, which is deception of course. Another effect of the gold is smoothening of the strike effects, which is a pity. This type of coin modification was commonly used to make a bezel or brooch more attractive. Some initials (of the first owner?) are on the outside face of the silver band holding the taler in place.    |
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Pillar of the Community
United States
6130 Posts |
Was digging through my Song dynasty backlog, and found this neat coin I had forgotten about:  That's natural light, no editing or photoshop. Apparently certain areas of China have a unique soil composition that causes this buildup on bronze. Some sort of calcium compound? |
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Valued Member
 United States
330 Posts |
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Moderator
 United States
188560 Posts |
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Clad coin series that's been artificially toned, including the wavy lines. Whoa!  |
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Valued Member
United States
330 Posts |
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Valued Member
United States
330 Posts |
 Silver florin that was at the end of a tape roll. These are not an everyday sight but not that hard to get a hold of. |
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Pillar of the Community
United States
8715 Posts |
Thought I would bump this thread with this coin I found in an aquarium. I have a planted aquarium, and while I was doing maintenance on it I found this Washington quarter with some environmental damage on the aquarium substrate. How it got there I don't know. It has an interesting copper color.   |
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Bedrock of the Community
Canada
24885 Posts |
1911 Australia One half penny (acid dip)   |
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Moderator
United States
188560 Posts |
Quote:Thought I would bump this thread with this coin I found in an aquarium. I have a planted aquarium, and while I was doing maintenance on it I found this Washington quarter with some environmental damage on the aquarium substrate. How it got there I don't know. It has an interesting copper color. Very interesting!  Quote:
1911 Australia One half penny (acid dip) Oh my! |
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Pillar of the Community
United States
2619 Posts |
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How about sea water corrosion on shipwreck coins? This 1782MO FF Mexico 8R from the El Cazador shipwreck shows the effects of the saltwater, especially on the reverse. Unfortunately I only have these old pictures.   |
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Pillar of the Community
United States
6514 Posts |
Quote:while I was doing maintenance on it I found this Washington quarter with some environmental damage on the aquarium substrate. Someone must have made a wish. |
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Replies: 38 / Views: 6,203 |
First Page
Posted 05/18/2018 11:27 am
