My 2016 coin arrived today. I used the same scale and setup as I used for my initial post, calibrated it the same way as I did previously, put the new coin on the scale and held my breath -- literally, as I didn't want to breathe on the coin and potentially have any tiny water droplets fall onto it!
It weighed 20.87 grams - within 0.01 grams of the
RCM's listed 20.86 grams weight for the coin and well within accepted tolerances (and/or my scale's accuracy).
So, it seems rather clear (at least by my measurements) that the weight listed for the 2007 "Chinese Coin" on the
RCM's web site is incorrect; the coin does not weigh 25.18 grams. And, unless my coin is a complete aberration, the correct weight for the coin is not the 23.99 grams specified on the coin's COA either. I've weighed my 2007 coin six times, each time the scale has read between 23.02 and 23.04 grams.
Anyone else have the 2007 coin and access to a scale? It would be great if someone could corroborate what I've found with my coins.
BTW, the coin is well-done and attractive in hand.
Collecting history one coin or medal at a time! (c) commems. All rights reserved.
Edited by commems
06/14/2016 1:09 pm