Pink, K. The Triumviri Monetales and the Structure of the Coinage of the Roman Republic. New York; American Numismatic Society, 1952. 4to., pp. 78. Original printed card covers, a little dusty and shelfworn, the contents clean. Very good, scarce.
Numismatic Studies No. 7. Clain-Stefanelli 3743, “An attempt to establish the chronology of the Roman Republican series.” Grierson p. 73.