I'll be honest, I am not 100% sure if this is genuine or not. Mike Diamond is very skeptical as to its authenticity as an error. @Fred Weinberg is there anything about it that gives you pause as to it being genuine?
I'm basing my comments on the photos, and not having the coin in-hand to examine. How did Mike D. describe it? And, we don't know the weight, and I'm assuming (from the photos) that it's thinner than a planchet. Could it be a man-made job? Yes, but I can't condemn it from the photos only, imo,.
i totally understand that...and the weight is .grams Here is how Mike described it: I suppose it's possible that this is a "sandwich strike" of sorts, with the reverse carrying a brockage from an underlying cent and the obverse struck through a late-stage die cap. However, I still don't like the look of the raised obverse as it lacks any sign of wrinkles or "tendrils" extending from the letters and numbers.
.3 grams...Razor thin...I found a LWC that was razor thin...correct patina for the age. Then when in the 7th grade, a bath in some acid reproduced the effect. At that point, I figured out my find was just a science experiment.