RPC 1 1172- Gaius Caligula ae semis; 20 mm, 6.7g, 1 h- struck accession year of 37-38 AD in Corinth. Duoviri are P Vipsanius Agrippa and Melius Proculus , Caligula bare head left and on reverse Pegasus flying right. Joe Geranio text and pho collection only. 