Roger Cohen (1953)
Containing material from Cohen prior to 1970:
A large picture of his 1808/7 Cohen-1 half cent.
MANA News from October 1954 and Numismatic Scrapbook Magazine article titled “Half Cent Miscellany: from December 1953 both written by Walter Breen listing 1808/7 as unique and in Cohen collection.
Abrahan Hepner obituary 1968.
Exhibition notes from GENA 11/1969.
Brochures by Paul Anderson.
List of half cents in Cohen collection as of 1967 and value of his coins in 1962.
Variety list from Breen.
Walter Breen letter 1953.