Seaby, Sear, Loosley, and King. Roman Silver Coins (five volumes). (London: Seaby, 1952-1989).
RSC I - Republic to Augustus (1978)
RSC II - Tiberius to Commodus (1979)
RSC III - Pertinax to Balbinus and Pupienus (1982)
RSC IV - Gordian III to Postumus (1982)
RSC V - Carausius to Romulus Augustus, (C.E.King & David Sear) (1987)
Comprehensive volumes dealing exclusively with Roman silver coinage, one of the most popular series among collectors of ancient coins. Numbering mainly follows Cohen.
David Sear's books in Forum's catalogue.