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Weight Variations

 
 
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 Posted 01/22/2016  09:30 am Show Profile   Bookmark this topic Add Hnry to your friends list Get a Link to this Message
Percentage wise, what is a reasonable weight variation among like coins?
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 Posted 01/22/2016  10:14 am  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
Do you mean Mint tolerances?
John1
( I'm no pro, it's just my humble opinion )
Searched 5+ Million Cents Since 1971
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 Posted 01/22/2016  4:04 pm  Show Profile   Bookmark this reply Add bpoc1 to your friends list Get a Link to this Reply
Hnry,
John, is there a site that shows Mint tolerances?
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 Posted 01/22/2016  4:46 pm  Show Profile   Bookmark this reply Add Hnry to your friends list Get a Link to this Reply
hi John1 - yes - mint tolerances...

it may not be public data?...

the QA process must address weight as well as composition ratios...

frequently when coins are described, the weight is provided to milligrams...
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 Posted 01/22/2016  4:57 pm  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
I don't know of a site but for cents it is .13grams
John1
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 Posted 01/22/2016  5:24 pm  Show Profile   Bookmark this reply Add amida17 to your friends list Get a Link to this Reply

Quote:
Small cent 1856 - 1971 was 2 grains or +/- .13 grams
Small cent 1972 - 1982 was 1.9 grains +/- .12 grams
nickels 1855 - date 3 grains +/- .19 grams
dimes 1.5 grains +/- .09 grams

quarters 3 grains +/- .19 grames (notice it is geting stricter. Weight of coin up 2.5 times, tolerance up only 2 times)

Halves 4 grains +/- .26 grams (weight up 100% tolerance up 33%)

silver dollar 6 grains +/- .39 grams (weight up 100% tolerance up 50% compared to the dime the weight is up ten times, tolerance up four times.)

Ike dollar 40% or clad 8 grains +/- .52 grams This is the only clad coin not held to the same standard as the silver versions.

Gold coins were held to much stricter tolerances especially as the weight increased.

gold dollar .25 grains +/- .02 grams

quarter eagle .25 grains +/- .02 grams weight up 150% tolerance up 0%

three dollar .25 grains +/- .02 grams still 0% increase in tolerance

half eagle .25 grains +/- .02 grams still 0% increase in tolerance

eagle .5 grains +/- .04 grains ten times the weight of the gold dollar with only a doubling of the tolerance allowance.

Double eagles .5 grains +/- .04 grams Weight doubled again with no increase in tolerance.


-Conder101 from here http://www.coinpeople.com/index.php...coin-weight/
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 Posted 01/22/2016  6:22 pm  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
amida17,
Where did you get that info?
John1
( I'm no pro, it's just my humble opinion )
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 Posted 01/22/2016  7:42 pm  Show Profile   Bookmark this reply Add Hnry to your friends list Get a Link to this Reply
wow! ask a simple question....

thanks for the great info....will take me a while to absorb it all....

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 Posted 01/23/2016  04:39 am  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
Thanks jbuck. The info is originally from Coin World Almanac 1976 edition.
John1
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 Posted 01/23/2016  09:59 am  Show Profile   Bookmark this reply Add Conder101 to your friends list Get a Link to this Reply
I have the complete listings by denomination as a PDF file if people are interested. Weights, diameters, tolerances, and specific gravities. Drop me an email with your email address.
Gary Schmidt
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 Posted 01/23/2016  9:04 pm  Show Profile   Bookmark this reply Add CSOTUS to your friends list Get a Link to this Reply

Quote:
Quote:
Small cent 1856 - 1971 was 2 grains or +/- .13 grams
Small cent 1972 - 1982 was 1.9 grains +/- .12 grams
nickels 1855 - date 3 grains +/- .19 grams
dimes 1.5 grains +/- .09 grams

quarters 3 grains +/- .19 grames (notice it is geting stricter. Weight of coin up 2.5 times, tolerance up only 2 times)

Halves 4 grains +/- .26 grams (weight up 100% tolerance up 33%)

silver dollar 6 grains +/- .39 grams (weight up 100% tolerance up 50% compared to the dime the weight is up ten times, tolerance up four times.)

Ike dollar 40% or clad 8 grains +/- .52 grams This is the only clad coin not held to the same standard as the silver versions.

Gold coins were held to much stricter tolerances especially as the weight increased.

gold dollar .25 grains +/- .02 grams

quarter eagle .25 grains +/- .02 grams weight up 150% tolerance up 0%

three dollar .25 grains +/- .02 grams still 0% increase in tolerance

half eagle .25 grains +/- .02 grams still 0% increase in tolerance

eagle .5 grains +/- .04 grains ten times the weight of the gold dollar with only a doubling of the tolerance allowance.

Double eagles .5 grains +/- .04 grams Weight doubled again with no increase in tolerance.


wow, thanks amida, and a special thanks to conder. This is great info.
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 Posted 01/23/2016  10:11 pm  Show Profile   Bookmark this reply Add BStrauss3 to your friends list Get a Link to this Reply
There is also information on the US Mint site for current coins...

https://www.usmint.gov/about_the_mi...ecifications

-----Burton
45 year / Life ANA member (joined 12/1/1973)
Life member: Numismatics International, CONECA
Member: TNA, FtWCC, NETCC
Owned by four cats and a wife of 35 years (joined 1983)
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