Commission to Standardize Screw Threads: Hearings Before the Committee on Coinage, Weights, and Measures, House of Representatives, Sixty-fifth Congress, Second Session, on H.R. 10472. March 5 and 7, 1918
U.S. Government Printing Office, 1918 - Coinage - 35 pages
Also considers coinage of silver 50-cent piece to commemorate Illinois centennial anniversary.
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