This is a coin that I had mistakenly placed in with my Trebonianus Gallus issues which look exactly the same !
Remembered only for being the first ( co ) emperor to die in battle along side his father Trajan Decius shortly after being elevated to co emperor, maybe this is why I had not heard of him.
Herennius Etruscus - early 251 - June 251, co - emperor.
Weight - 10.53g
Size - 30mm
I havnt found the exact PR number yet but PR 638 is close,






