I weighed it on a gram scale. I stood it upright with a normal half. Should have mentioned to look at the collar. The reeded edge is 100% on the obverse and 75% on the reverse. Off to work.
If it was smaller than a half, it couldn't have fully formed rims. Comparison photo with another half would help. The planchet could be thinner, if it was on wrong stock, or rolled thin. But if it were smaller (dollar coin or quarter) the rims would show that, and the lettering near the edge also would show that.
It looks like it might have been 'shaved' on the rims - notice the 'reeding' that is easily seen in the OP's photos - that's not normal, imo. Shaving might also be the reason why it's marginally smaller in diameter.
if it's smaller then it's a fantasy piece, or "replica". Dies (which are made of steel) don't shrink from usage. Neither does the collar, nor the planchets, nor the machine or people that makes them. eBay is littered with replica/fantasy money smaller than the real stuff. For use in doll houses, to kids cashier machines, etc. here's some really small change .. that's a normal 2x2 flip
I believe tolerance is 0.4 grams for a 2000? I'm probably wrong, to much to retain for me, but if not it's slightly under weight.
That is an excellent question. One I don't have an answer for but an excellent question none the less. I don't recall ever seeing a clad replica/fantasy coin.
Spec weight is 11.34 grams +/- .454 grams But since his figures are rounded to one decimal place if we round the spec and tolerance the same we get a weight of 11.3 grams +/- .5 grams which gives you a minimum tolerance weight of 10.8 grams the same as what the OP coin weighs. So it seems to be a normal coin at the low end of the tolerance range.
