Hello everyone, I noticed the diameter of my 1oz. 2009 American Gold Eagle measures just 32.65 mm rather than the 32.70 mm specified by the Mint. Does the fact that my coin's diameter deviates from the official specs automatically imply that the coin is fake or is it normal to expect some slight deviation in the diameter? (Everything else, as far as I can tell, looks Ok: the thickness look acceptable, and, according to my ~$40.00 scale, the coin weighs in at 33.97 g). Thank you, osklo
Diameter alone can't tell a fake, 0.05 mm could be just measuring error is not much. Try uploading a picture
Thank you for your reply. (Cute graphics BTW). As mentioned in my post: "Everything else, as far as I can tell, looks Ok", i.e. my concern is specifically limited to the coin's diameter: does the fact that a coin's diameter diverges from the officially published specs imply that that coin is a fake? Or am I to understand that the diameter should fall within a range centered on the published spec, e.g. 32.70 mm +/- 0.05 mm?
You are talking about five hundredths of a millimeter, this is likely due to an inaccurate measurement.
no it is funny. because for such a science attentive person you seem to have missed the most frequent problem in analysis; accuracy. when you used the "same calipers" were you measuring across two reeds on one end of the first coin? Across two reeds on the opposite end? And what about the second coin, the new one in question? Touching only one reed on one end? Across two reeds on one end? Both ends? You are creating a thread about one "issue" with a coin, it's diameter, and of such a small statistical significance it is silly. I answered appropriately.
further, you stated the thickness "looks acceptable". I mean, if you already have these handy calipers out, why did you not measure both to the hundredth of a millimeter for analysis?
and further past further. if they are "acceptable", define "acceptable"....is "acceptable" one millionth of a millimeter? because i think 5/100 of a millimeter is acceptable considering the researcher taking the measurements. relax guy.
With so many good fakes out there I'd have the same concern. Even if his question would have been bit silly, which I think it is not, we should consider we are talking about someone who has just joined today.
