Master Coin Circular
U.S. Mint [Fixed Price List], U.S. Mint (1859)
Periodical Summary
Memo from U.S. Mint Director James Ross Snowden regarding the offering of master coins ("proofs" in modern parlance). From the National Archives and Records Administration, record group 104 (U.S. Mint), entry 1 (general correspondence), box 57. Courtesy of Roger W. Burdette.
Note transcription on p. 2.
See also the Snowden circular of May 21, 1859 (https://nnp.wustl.edu/library/book/579972).
See also Roger W. Burdette, "A Brief History of United States Proof Coins (Part One)," The Numismatist, January 2023, pp. 42-48.