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 Replies: 18 / Views: 3,746 |
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New Member
United States
8 Posts |
Good morning! Although I am a regular over on the stamp forum, I know enough about numismatics to get into trouble but not out of it, and so I am starting with the modern-era coins I've grown up with before starting to delve into the 18th and 19th century stuff. Good morning! Although I am a regular over on the stamp forum, I know enough about numismatics to get into trouble but not out of it, and so I am starting with the modern-era coins I've grown up with before starting to delve into the 18th and 19th century stuff. I am seeking some assistance with this Kennedy half found in a large inherited collection (one of three similar coins). I have been unable to learn anything from the webs as yet - knowing where and how to find answers to my stamp questions is easy...  but coins?  It seems to be lacking any of the nickel, so perhaps never clad and struck solely on the copper planchet, or is this some silly electroplated fakery?  |
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Pillar of the Community
United States
7390 Posts |
 to the begging of your metamorphosis from tiny paper things to tiny metal things  It dosent quite look like environmental damage or plating. Can we get a weight to a tenth of a gram? |
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Pillar of the Community
United States
1788 Posts |
Also, a picture of the rim would be great.
Welcome!
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New Member
 United States
8 Posts |
Yippie... Weight.
<sigh> I've got plenty of toys to measure paper thickness, but nothing better than an ounce scale. Since it has come up on my very first "help" coin, and I know I need one for some of the colonial-era items, I will pick one up later this afternoon and post the weight as promptly as possible. Thanks!
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New Member
United States
8 Posts |
Over here on the Dark Side, which works better, a scan or a photo? The above pictures are 600dpi scans, as stamp photos really are not of much use when checking fine details.
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Pillar of the Community
United States
4897 Posts |
Quote:
I need one for some of the colonial-era items yes, please....  |
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Bedrock of the Community
United States
62064 Posts |
In the image it looks like either light or silver showing on some devices? Any evidence of silver at all on your coin? I notice also that there is an all over weakness on the coin on the high spots. So I was wondering if the cladding was removed or just weakness of the strike because of the lack of cladding. Here are a couple images of a partial cladding and part of what fell/partially removed after the strike:  Yours doesn't look as weak as the split off after the strike. But yet not as strong as the missing cladding before the strike. I have an image of acid dipped cents, but there is also one that had the cladding removed possibly by acid at the bottom of it.  So I'm wondering if your coin was dipped in acid and it removed the cladding. (most acids remove the copper more than the cladding, but I'm not familiar with what acid that might be) But notice the weakness on the obverse of the quarter in the lower part of that image. |
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New Member
United States
8 Posts |
This coin weighs in at 11.5g
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New Member
United States
8 Posts |
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New Member
United States
8 Posts |
It doe not appear to be a case of a clad lost after the strike. There is too much detail as compared to examples on this forum and elsewhere.
Looking forward to hearing opinions on the acid-dip possibility. I don't know enough to tell if the weight is off and certainly no idea as to what telltale signs I should look for. The fine details in Kennedy's hair and the eagle's feathers are clear to the eye. I was unable to see any trace of non-brown coloring under my 30x loupe.
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Valued Member
United States
214 Posts |
Weight should be 11.34 grams. There is some variation allowed but if the outer layers were stripped off, it should be less.
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Valued Member
United States
214 Posts |
My guess would be copper plating, but the only test I know for that is the scratch test.
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Bedrock of the Community
United States
62064 Posts |
You could make a scratch in the reeding to see if it has been plated without ruining the surface of the coin. The line should show the silver/copper/silver color there.  |
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Pillar of the Community
United States
2740 Posts |
The two most likely possibilities are an improperly annealed planchet or a normal half dollar that was plated with copper outside the Mint. An off-metal counterfeit is also a possibility.
Error coin writer and researcher.
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New Member
United States
8 Posts |
I will give the reeding a scratch test when I get home tonight. I did check the calibration of my scale and it is spot-on at 100g, 250g and 500g. As this one comes in overweight, I am expecting to see some silver show up. Thanks to all and I will post results tonight (unless stuck in Detroit late...)
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Pillar of the Community
United States
616 Posts |
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Replies: 18 / Views: 3,746 |
Posted 09/14/2015 11:27 am
