1972 Kennedy Half weighs 10.37 grams -should be 11.34 - error? or within the tolerance weight.
I have this Kennedy Half that weighs 10.37 grams and should be 11.34. It does not look worn enough to have such a weight difference. I have read that there is a tolerance weight difference in all coins but can not find what the difference in weight can be considered normal. Thank you for any help.