FYI, I went off the CCF grid looking for any Coin World
Almanac references and ran across the following on another coin forum. Posted by Condor101.
Sorry no reference to the copper plated zinc era listed after 1982, so assume its still the standard after seeing the other references here on CCF that reference to it. Thanks, Doug.http://www.coinpeople.com/index.php...coin-weight/
Posted 09 September 2005 - 01:25 PM
I don't know the standards used in other countries, but I have a list of the allowed tolerance for most US coins
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.
The information came from the Coin World
Almanac 1976 edition.
Second opinions are always recommended. Rookies thoughts!
Two sides to every coin. The edge makes three.
Side Note: Sometimes I feel like a nut, sometimes I don't.