https://rpc.ashmus.ox.ac.uk/countermark/424 

GIC 302

Capricorn r. (in rectangular punch)

rectangular 

5 x 4 mm 

Parium (Mysia)

The capricorn was a standard type for Parium. The capricorn was a symbol of Augustus and was probably adopted as a symbol of the city after a Augustan refoundation of the colonia. GIC notes that the capricorn countermarks on the colonist ploughing types may have indicated a devaluation of the coins.