1901 United States Assay Commission Medal. Silver. 40 mm x 57 mm. By Charles E. Barber and George T. Morgan. JK AC-45. Rarity-5. Specimen-63 (PCGS).This handsome antique pewter gray example exhibits an overall smooth, fine grain sandblast texture. According to the Mint directors annual report, only 40 silver impressions of this type were produced.