Walter H. Breen (1930?-1993) was the author of numerous numismatic works, including Proof Coins Struck by the United States
Mint, 1817-1921 (1953), Walter Breen’s Encyclopedia of United States Half Cents (1984), and Walter Breen’s Complete Encyclopedia
of U.S. and Colonial Coins (1988).
Correspondence, notes, and typescripts of published and unpublished works. Subjects include colonial American coinage, large
U.S. cents, and U.S. gold dollars. Access to portions
may be restricted.