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 5068 3 5.2
RPC V.2, — (number not assigned), type ID 91 Show 5007 2 5.2
RPC V.2, — (number not assigned), type ID 89067 Show 5066 2 5.2
RPC VI, 5497 (temporary) Show 5195 5 6
RPC VI, 5510 (temporary) Show 5176 2 6
RPC VI, 5501 (temporary) Show 5171 26 6
RPC VI, 5504 (temporary) Show 5182 1 6
RPC VI, 5497 (temporary) Show 5195 3 6
RPC VI, 5501 (temporary) Show 5171 4 6
RPC VI, 5501 (temporary) Show 5171 2 6
RPC VI, 5501 (temporary) Show 5171 16 6
RPC VI, 5503 (temporary) Show 5174 1 6
RPC VI, 5512 (temporary) Show 5185 12 6
RPC VI, 5501 (temporary) Show 5171 3 6
RPC VI, 5501 (temporary) Show 5171 11 6
RPC VI, 5512 (temporary) Show 5185 1 6
RPC VI, 5501 (temporary) Show 5171 8 6
RPC VI, 5505 (temporary) Show 5177 6 6
RPC VI, 5501 (temporary) Show 5171 23 6
RPC V.2, — (number not assigned), type ID 130 Show 5041 2 5.2
RPC VI, 5512 (temporary) Show 5185 14 6
RPC V.2, — (number not assigned), type ID 667 Show 5020 1 5.2
RPC V.2, — (number not assigned), type ID 332 Show 5024 2 5.2
RPC V.2, — (number not assigned), type ID 1241 Show 5053 1 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5070 6 5.2
RPC V.2, — (number not assigned), type ID 970 Show 5072 2 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5070 2 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5070 5 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5070 8 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5070 10 5.2
RPC VI, 5503 (temporary) Show 5174 4 6
RPC VI, 5507 (temporary) Show 5179 5 6
RPC VI, 5500 (temporary) Show 5170 2 6
RPC V.2, — (number not assigned), type ID 811 Show 5073 9 5.2
RPC V.2, — (number not assigned), type ID 970 Show 5072 4 5.2
RPC V.2, — (number not assigned), type ID 65 Show 5043 1 5.2
RPC V.2, — (number not assigned), type ID 65 Show 5043 3 5.2
RPC V.2, — (number not assigned), type ID 1066 Show 5039 9 5.2
RPC V.2, — (number not assigned), type ID 1066 Show 5039 8 5.2
RPC V.2, — (number not assigned), type ID 1187 Show 5044 13 5.2
RPC V.2, — (number not assigned), type ID 1187 Show 5044 6 5.2
RPC V.2, — (number not assigned), type ID 1187 Show 5044 9 5.2
RPC V.2, — (number not assigned), type ID 1187 Show 5044 4 5.2
RPC V.2, — (number not assigned), type ID 71822 Show 4961 1 5.2
RPC V.2, — (number not assigned), type ID 973 Show 4991 1 5.2
RPC V.2, — (number not assigned), type ID 71821 Show 5036 1 5.2
RPC V.2, — (number not assigned), type ID 1070 Show 5000 1 5.2
RPC V.2, — (number not assigned), type ID 32 Show 5001 1 5.2
RPC V.2, — (number not assigned), type ID 91 Show 5007 4 5.2
RPC V.2, — (number not assigned), type ID 89067 Show 5066 1 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5070 7 5.2
RPC V.2, — (number not assigned), type ID 130 Show 5041 3 5.2
RPC V.2, — (number not assigned), type ID 72373 Show 4999 1 5.2