I usually don't weigh coins to often. This one fell on the pile and made a cling type silver noise. The edge does have clad. Any answers to why this is under weight? Thanks in advance
A quarter weighs 5.67 grams with a tolerance of ± 0.227 grams. On the low side it should be 5.44g and on the heavy side it should be 5.90g. it's under low tolerance by 0.21g if the scale is accurate. 0.44 underweight total, almost half a gram. Should be 24.26mm (0.955 in.) diameter and 1.75mm (0.069 inches) thickness. for me the millimeters is easier to figure out, but there's both. you could check thickness with a digital caliper, or an analog one something like that. probably a rolled thin planchet. the rims are there and all details, so it's not going to be a diameter issue, that leaves thickness. average wear over time would be maybe 3-5% heavy wear would be more like 10% of the minted weight, what some would call a "slick" and even then slick is more like 7% of surface lost to circulation..... 0.40g could be explained if the coin was slick and heavily worn. Is the edge intact or gutted? I've seen acid treated coins where the copper core was eaten away to some extent that sounded different and lost weight while appearing fine obverse and reverse.
Looks like any other quarter. Edge seems to be the same also. Coin drop noise caught my surprise. I will get a full pic. All the other quarters I weigh are 5.4 to 5.6.
Seems cionsistent with a slightly rolled thin planchet. Not really far enough out of tolerance to be worth a premium, but interesting and a genuine error.
