$ 16.00
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1 ounce (28 g) solid copper coin from Michigan.
3.7 x 3.7 x .3 cm
This coin, which comes with its own acrylic display case, features a triceratops on the front. The back denotes .999 fine USA copper weighing one A.V.D.P* ounce.
*avoirdupois (AVDP) ounces, a French term meaning "goods of weight" and a common unit of measure in the precious metals market