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 Replies: 13 / Views: 2,545 |
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Pillar of the Community
 United States
735 Posts |
I've been collecting for a couple years... Favorite Coin's are Standing Liberty quarters, Working on my type set | Coffee, Corvettes, Coins & the CCF what could be better? |
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Moderator
 United States
34395 Posts |
@jakes, if your coin is the wrong diameter and wrong weight, how sure are you that it isn't a fake?
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
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Pillar of the Community
 United States
735 Posts |
@spence I magnet tested it and I am positive it is silver, the edge lettering looks correct, and it looks authentic to me. I seemed to have worded the weight wrong it should say, taking into account the loose of silver from the hole it weighs correctly.
I've been collecting for a couple years... Favorite Coin's are Standing Liberty quarters, Working on my type set | Coffee, Corvettes, Coins & the CCF what could be better? |
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Bedrock of the Community
United States
94367 Posts |
Assume you are talking about weight and not diameter. The hole would not meaningfully affect the weight - mostly just displaces metal to the sides.  to the CCF! Edited by Coinfrog
12/28/2020 9:14 pm
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Pillar of the Community
United States
735 Posts |
@coinfrog
the coin weighs a couple 1/10 of a gram under the weight listed by a coin guide, which seems totally reasonable and within what it should be.
I've been collecting for a couple years... Favorite Coin's are Standing Liberty quarters, Working on my type set | Coffee, Corvettes, Coins & the CCF what could be better? Edited by Jakes Coins
12/28/2020 9:25 pm
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Pillar of the Community
2145 Posts |
So your coin is just a touch lighter than normal but larger in diameter? So were you able to check thickness?
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Bedrock of the Community
Australia
21786 Posts |
Hole off vertical axis to avoid boring through LIBERTY (obv) and STATES (rev).
Need to know the tolerance for diameter and weight for Draped Bust Half Dollars.
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Pillar of the Community
United States
735 Posts |
@rothery
yes it seems slightly light (but I dont have a 100% accurate scale so I cannot be certain) the coin is about 1.62mm thick.
I've been collecting for a couple years... Favorite Coin's are Standing Liberty quarters, Working on my type set | Coffee, Corvettes, Coins & the CCF what could be better? |
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Pillar of the Community
2145 Posts |
Did they use a collar for the early halves when striking? I guess so if there is edge lettering. What I'm getting at is if the collar was a bit bigger than the norm then the coin may have expanded during the strike creating the larger diameter - just a thought EDIT: Quote:
the coin is about 1.62mm thick. Is that normal compared to other halves? Edited by Rothery
12/28/2020 10:57 pm
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Pillar of the Community
United States
5661 Posts |
It looks genuine, it's a match to O-110, including the obverse die cracks. Not sure why the discrepancy in size.
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Pillar of the Community
United States
735 Posts |
@ Rothery
I would say that sounds like a possibility, I did find an old forum post "One item I have not seen in publications is that Flowing Hair and Draped Bust halves are slightly larger in diameter than capped halves, except for the changeover year of 1807. Also, there are three oversized 1807 half dollar die marriages, two draped and one capped, I believe this was experimental for many reasons - might write an article at some future date on this. The draped halves are slightly egg shaped, 6:00 to 12:00 is slightly larger diameter than 3:00 to 9:00 because the draped obverse design drives the eccentric shape during striking." Mine is slightly larger up and down approx 33.42mm and side to side is about 33.14mm, I am not super familiar with the early halves so I'm not sure if that is the normal thickness or not.. Nor could I find anything online
I've been collecting for a couple years... Favorite Coin's are Standing Liberty quarters, Working on my type set | Coffee, Corvettes, Coins & the CCF what could be better? Edited by Jakes Coins
12/28/2020 11:41 pm
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Bedrock of the Community
United States
17884 Posts |
Quote:
Did they use a collar for the early halves when striking? I guess so if there is edge lettering. No they DIDN'T use a collar. (The edge lettering was added in a separate step using a Castaining machine before the coin was struck.) THAT is why you are seeing a diameter discrepancy. The early US coins were struck with standard diameter planchets but without restraining collars so their final diameter is a function of how well the planchets are annealed and how strongly the coin was struck. A softer than usual planchet or a harder than normal strike and the result is a larger than normal diameter. On many of the early coins you can assume a variance or +/- 1 mm. You will also usually find that the diameter from 12:00 to 6:00 will be a little different than from 9:00 to 3:00 because the bust constrains the spread of the metal some. |
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Bedrock of the Community
United States
94367 Posts |
Excellent input from Conder as always.
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Pillar of the Community
2145 Posts |
Quote:
No they DIDN'T use a collar. (The edge lettering was added in a separate step using a Castaining machine before the coin was struck.) Great info - learn something new all the time on CCF! |
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Replies: 13 / Views: 2,545 |
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Posted 12/28/2020 9:01 pm
