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 Replies: 22 / Views: 2,348 |
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Pillar of the Community
United States
3237 Posts |
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Valued Member
 United States
113 Posts |
Thank You Sam coin;
Nice example
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Valued Member
United States
113 Posts |
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Pillar of the Community
United States
2775 Posts |
More food for thought. To replicate a raised bubble using heat, the coin in question that's being heated has to have gas trapped between the clad layers. I'm thinking most do not. Thanks, Doug.
Edited by Halo1st
08/31/2021 4:57 pm
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Moderator
 United States
96545 Posts |
That sure is one large proboscis there
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Valued Member
United States
113 Posts |
Thanks for you input Halo 1st and Dearborn;
I'm not sure what a proboscis is ? I'm guessing its a schnozz as Jimmy Durante would say.
Edited by realdeal101
08/31/2021 6:20 pm
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Bedrock of the Community
United States
62064 Posts |
House fire coins show the swelling a lot more:  Not on your image that some areas the bubble has been partly flattened. |
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Moderator
United States
96545 Posts |
Quote:
I'm not sure what a proboscis is ? I'm guessing its a schnozz as Jimmy Durante would say. lol, It is.. |
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Valued Member
United States
113 Posts |
Thank You Coop;
The images you show are great .
I see more of a round bubble with those coins but with my coins the bump is smaller and more pointed as seen ,I guess those gas bubbles are very strong even that small.
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Bedrock of the Community
United States
62064 Posts |
It's not a gas bubble issue, more of an expansion issue with different metals and clad thickness. they get flattened after someone tries to use them in a vending machines and they are to thick. They then smack them with a hammer, then use them.
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Pillar of the Community
United States
2775 Posts |
http://www.error-ref.com/gas-bubbles/More food for thought. Thanks, Doug. Quote:
Edit: While gas bubbles are sometimes seen on clad coins, these always turn out to have been caused by heat applied externally outside the Mint.
Edited by Halo1st
09/02/2021 4:34 pm
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Valued Member
United States
113 Posts |
Thank You Halo1st;
That is very interesting,it sounds like there is a problem with the mixed metals being bonded sometimes ,and it would be very difficult to tell how these bubble's actually were made ,inside the mint or outside the mint.I'm guessing with my coin
just guessing .I have seen coins that have been grease damaged
and it looks a lot like this coin.Their is something going on with the dark discoloring and pits in the coin metal.Maybe fire, but would that cause pits or maybe it was just in the ground and decomposing? But I'm thinking what ever caused the pitting did it cause the bubbles too, I'm thinking it did.
Edited by realdeal101
09/03/2021 1:56 pm
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Moderator
United States
96545 Posts |
Hmm. "Halo 1st" meaning high altitude, low opening, first jump?
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Valued Member
United States
113 Posts |
I'm adding another mystery to this coin why does it weigh only 2.18 grams
When it should weigh 2.27 grams .Could that mean it was pitted in the center causing the weigh loss and causing a bubble .
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Bedrock of the Community
United States
62064 Posts |
Some of the surfaces looks like it was sanded off the coin. Just a damaged coin.
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Replies: 22 / Views: 2,348 |
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Posted 08/31/2021 4:05 pm
