This coin weighs 16.28G. Should weigh 15.62G. Anyone know why and is there a chart for weight tolerance? Thanks!
The explanation is that when the stock sheets are created some are rolled a bit thicker which would slightly increase the weight. The opposite is the same, rolled thinner would make it a bit lighter. Rolled perfect would create the correct weight. Rolled too thick or too thin would then make them a mint error. The Minting Process: Planchet Preparation - US, World, and Ancient Coins - NGC Coin Collectors Chat Boards Most of the metal that the Mint uses comes from outside contractors. The metal typically arrives in sheet form that is rolled up. The sheets are roughly 1300 feet long and weigh between 1,100 and 7,000 pounds. Each lot that comes in is assayed to ensure that the metal composition is correct. This is usually done by clipping a portion of the metal sheet and melting it into constituent parts. The sheets are already the correct thickness for blanking (that is, they have already been rolled and pressed by the contractor before it arrives at the mint, which leaves open the possibility that the thickness can sometimes vary from mint specifications, which results in a thin or thick coin after striking)
Sal, the coins weighs heavy because the Queen needs her hair cut and the canoe has some water in it. lol
