Weigh/tolerance = 3.11g +/- 0.13g. It may be a little heavy, but with scales which weigh only to 1 decimal, rounding error leaves you in the dark. Possible rolled thick planchet, but I doubt it. To check, you could measure thickness with calipers to 2 decimals in mm. If it exceeds thickness tolerance, I would call it rolled thick. Thickness tolerance = 1.52 mm -0.102/+0.152 mm
Struck on a slightly thicker planchet. It is definitely within tolerance. Nothing major. ¿Que?.. What? Interesting member name.
Not sure how accurate that scale is with that "basket" type apparatus. Color seems off on this coin. Where did you get it?
Change from a random store. The basket is a tray. It doesn't affect the weighing method. I use it for jewelry
Yes I understand. I just don't know how accurate that scale is. Weigh some other copper cents, to get a control figure. If they all weigh 3.1 then OK. If they don't your scale is off, not the coppers.
It is definitely on a rolled thick planchet. For the scale to read 3.4 grams the coin would have to weigh at LEAST 3.35 grams, and the maximum tolerance weight is 3.24 grams so it has to be at least .1 gram out of tolerance. Measureing thinckness is prety much a pointless effort as first where do you measure? And if it is at the rim the rim thickness will vary depending on the strength of the strike. If he tared the scale after he put the tray on and before he added the coin it should weigh accurately. many of these small scales come with a cover that doubles as a weighing tray so the scale is designed to be accurate while using them. You keep saying this on coins that are NOT within tolerance, why? I'm sure you know what the tolerance ranges are. If you mean they are not far enough out of tolerance to be worth a premium you should say that, not that they are within tolerance.
