Caracalla as Hercules on an intaglio found near Lincoln.

von Marsden, A.
Veröffentlicht in Oxford Journal of Archaeology, 21.2002
2002.
Umfang/Format: 419-422.

Imperial portrait gems, medaillons and mounted coins. Changes in imperial donativa in the 3rd century A.D.

von Marsden, A.B
Veröffentlicht in Classicism to neo-classicism. Essays dedicated to Gertrud Seidmann
Umfang/Format: 89-103.

Medieval and modern hoards.

von Cook, B. F. (Brian Francis), 1933-
Veröffentlicht in The Numismatic Chronicle. The Journal of the Royal Numismatic Society, ns170.2010
2010.
Umfang/Format: 432-446.