Countermark

https://rpc.ashmus.ox.ac.uk/countermark/121 
GIC 5
Asclepius, bust r.
square or rectangular 
6 x 5 mm 
Applied on either side of coin; For the importance of Asklepius at Aegeae see H. Bloesch, 'Caracalla in Aegeai', Congresso Internazionale di Numismatica, Rome 1961, vol.2, 1965, pp.307-12. For his temple: Price and Trell fig.395. For an alternative identification cf. SNG vA 8665 ('Poseidon'). 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
Show 178
RPC V.3, — (number not assigned), type ID 85084 Show 2865 11 5.3
RPC V.3, — (number not assigned), type ID 85083 Show 2864 2 5.3
RPC V.3, — (number not assigned), type ID 85089 Show 2868 1 5.3
RPC V.3, — (number not assigned), type ID 85093 Show 2877 1 5.3
RPC V.3, — (number not assigned), type ID 85105 Show 2885 15 5.3
RPC V.3, — (number not assigned), type ID 85109 Show 2892 1 5.3
RPC V.3, — (number not assigned), type ID 85188 Show 2923 1 5.3
RPC V.3, — (number not assigned), type ID 85083 Show 2864 4 5.3
Show 107
RPC V.3, — (number not assigned), type ID 85469 Show 2929 1 5.3
RPC V.3, — (number not assigned), type ID 85470 Show 2928 1 5.3
RPC V.3, — (number not assigned), type ID 85466 Show 2931 1 5.3
RPC V.3, — (number not assigned), type ID 85476 Show 2941 1 5.3
RPC V.3, — (number not assigned), type ID 85092 Show 2875 1 5.3
RPC V.3, — (number not assigned), type ID 85112 Show 2889 4 5.3
RPC V.3, — (number not assigned), type ID 95072 Show 2918 1 5.3