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 5066 3 5.2
RPC V.2, — (number not assigned), type ID 91 Show 5004 2 5.2
RPC V.2, — (number not assigned), type ID 89067 Show 5064 2 5.2
RPC VI, 5497 (temporary) Show 5190 5 6
RPC VI, 5510 (temporary) Show 5171 2 6
RPC VI, 5501 (temporary) Show 5166 26 6
RPC VI, 5504 (temporary) Show 5177 1 6
RPC VI, 5497 (temporary) Show 5190 3 6
RPC VI, 5501 (temporary) Show 5166 4 6
RPC VI, 5501 (temporary) Show 5166 2 6
RPC VI, 5501 (temporary) Show 5166 16 6
RPC VI, 5503 (temporary) Show 5169 1 6
RPC VI, 5512 (temporary) Show 5180 12 6
RPC VI, 5501 (temporary) Show 5166 3 6
RPC VI, 5501 (temporary) Show 5166 11 6
RPC VI, 5512 (temporary) Show 5180 1 6
RPC VI, 5501 (temporary) Show 5166 8 6
RPC VI, 5505 (temporary) Show 5172 6 6
RPC VI, 5501 (temporary) Show 5166 23 6
RPC V.2, — (number not assigned), type ID 130 Show 5039 2 5.2
RPC VI, 5512 (temporary) Show 5180 14 6
RPC V.2, — (number not assigned), type ID 667 Show 5018 1 5.2
RPC V.2, — (number not assigned), type ID 332 Show 5022 2 5.2
RPC V.2, — (number not assigned), type ID 1241 Show 5051 1 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5068 6 5.2
RPC V.2, — (number not assigned), type ID 970 Show 5070 2 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5068 2 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5068 5 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5068 8 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5068 10 5.2
RPC VI, 5503 (temporary) Show 5169 4 6
RPC VI, 5507 (temporary) Show 5174 5 6
RPC VI, 5500 (temporary) Show 5165 2 6
RPC V.2, — (number not assigned), type ID 811 Show 5071 9 5.2
RPC V.2, — (number not assigned), type ID 970 Show 5070 4 5.2
RPC V.2, — (number not assigned), type ID 65 Show 5041 1 5.2
RPC V.2, — (number not assigned), type ID 65 Show 5041 3 5.2
RPC V.2, — (number not assigned), type ID 1066 Show 5037 9 5.2
RPC V.2, — (number not assigned), type ID 1066 Show 5037 8 5.2
RPC V.2, — (number not assigned), type ID 1187 Show 5042 13 5.2
RPC V.2, — (number not assigned), type ID 1187 Show 5042 6 5.2
RPC V.2, — (number not assigned), type ID 1187 Show 5042 9 5.2
RPC V.2, — (number not assigned), type ID 1187 Show 5042 4 5.2
RPC V.2, — (number not assigned), type ID 71822 Show 4959 1 5.2
RPC V.2, — (number not assigned), type ID 973 Show 4989 1 5.2
RPC V.2, — (number not assigned), type ID 71821 Show 5034 1 5.2
RPC V.2, — (number not assigned), type ID 1070 Show 4998 1 5.2
RPC V.2, — (number not assigned), type ID 32 Show 4999 1 5.2
RPC V.2, — (number not assigned), type ID 91 Show 5004 4 5.2
RPC V.2, — (number not assigned), type ID 89067 Show 5064 1 5.2
RPC V.2, — (number not assigned), type ID 1223 Show 5068 7 5.2
RPC V.2, — (number not assigned), type ID 130 Show 5039 3 5.2
RPC V.2, — (number not assigned), type ID 72373 Show 4997 1 5.2