Countermark

https://rpc.ashmus.ox.ac.uk/countermark/754 
GIC 631
monogram ΗΡ or ΡΗ
circular 
6 mm 
ΡΗ = date of 108 = AD 230/1 (according to Howgego). Leschhorn, Antike Ären, dates this to AD 235/6, assuming the era started in AD 128. 

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC V.2, — (number not assigned), type ID 635 Show 5003 3 5.2
RPC V.2, — (number not assigned), type ID 91 Show 4945 2 5.2
RPC V.2, — (number not assigned), type ID 89067 Show 5001 2 5.2
RPC VI, 5497 (temporary) Show 5127 5 6
RPC VI, 5510 (temporary) Show 5108 2 6
RPC VI, 5501 (temporary) Show 5103 26 6
RPC VI, 5504 (temporary) Show 5114 1 6
RPC VI, 5497 (temporary) Show 5127 3 6
RPC VI, 5501 (temporary) Show 5103 4 6
RPC VI, 5501 (temporary) Show 5103 2 6
RPC VI, 5501 (temporary) Show 5103 16 6
RPC VI, 5503 (temporary) Show 5106 1 6
RPC VI, 5512 (temporary) Show 5117 12 6
RPC VI, 5501 (temporary) Show 5103 3 6
RPC VI, 5501 (temporary) Show 5103 11 6
RPC VI, 5512 (temporary) Show 5117 1 6
RPC VI, 5501 (temporary) Show 5103 8 6
RPC VI, 5505 (temporary) Show 5109 6 6
RPC VI, 5501 (temporary) Show 5103 23 6
RPC V.2, — (number not assigned), type ID 130 Show 4976 2 5.2
RPC VI, 5512 (temporary) Show 5117 14 6
RPC V.2, — (number not assigned), type ID 667 Show 4957 1 5.2
RPC V.2, — (number not assigned), type ID 332 Show 4961 2 5.2
RPC V.2, — (number not assigned), type ID 1241 Show 4988 1 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5005 6 5.2
RPC V.2, — (number not assigned), type ID 970 Show 5008 2 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5005 2 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5005 5 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5005 8 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5005 10 5.2
RPC VI, 5503 (temporary) Show 5106 4 6
RPC VI, 5507 (temporary) Show 5111 5 6
RPC VI, 5500 (temporary) Show 5102 2 6
RPC V.2, — (number not assigned), type ID 811 Show 5009 9 5.2
RPC V.2, — (number not assigned), type ID 970 Show 5008 4 5.2
RPC V.2, — (number not assigned), type ID 65 Show 4978 1 5.2
RPC V.2, — (number not assigned), type ID 183 Show 4977 1 5.2
RPC V.2, — (number not assigned), type ID 65 Show 4978 3 5.2
RPC V.2, — (number not assigned), type ID 1066 Show 4974 9 5.2
RPC V.2, — (number not assigned), type ID 1066 Show 4974 8 5.2
RPC V.2, — (number not assigned), type ID 1187 Show 4979 13 5.2
RPC V.2, — (number not assigned), type ID 1187 Show 4979 6 5.2
RPC V.2, — (number not assigned), type ID 1187 Show 4979 9 5.2
RPC V.2, — (number not assigned), type ID 1187 Show 4979 4 5.2
RPC V.2, — (number not assigned), type ID 71822 Show 4900 1 5.2
RPC V.2, — (number not assigned), type ID 973 Show 4930 1 5.2
RPC V.2, — (number not assigned), type ID 71821 Show 4971 1 5.2
RPC V.2, — (number not assigned), type ID 1070 Show 4939 1 5.2
RPC V.2, — (number not assigned), type ID 32 Show 4940 1 5.2
RPC V.2, — (number not assigned), type ID 91 Show 4945 4 5.2
RPC V.2, — (number not assigned), type ID 89067 Show 5001 1 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5005 7 5.2
RPC V.2, — (number not assigned), type ID 130 Show 4976 3 5.2
RPC V.2, — (number not assigned), type ID 72373 Show 4938 1 5.2