1. Campbell, W. (1933) Greek and Roman Plated Coins, The American Numismatic Society monograph 57, New York
2. The Libyan War and coinage: a new hoard and the evidence of metal analysis;Carradice;Numismatic Chronicle,1988
3. The first Sheffield plate;Charles;Antiquity,1968
4. A silvered bronze false antoninianus ascribed to the Roman Emperor Gordian III AD 238–244;Cope;Metallurgia,1967
5. Cope, L. H. (1972) Surface-silvered ancient coins. In Methods of Chemical and Metallurgical Investigation of Ancient Coinage (eds E.T. Hall and D.M. Metcalf) Royal Numismatic Society Special Publication 8, London, pp. 261–278