sizes around 24 to 28 mm
weight: around 4 grams
source: [1]
Shapur I was the second Sassanid King of the Persian Empire. The dates of his reign are commonly given as 240/42 – 270/72, but it is likely that he also reigned as co-regent (together with his father) prior to his father's death in 242 (more probably than 240).
