I believe I have identified the one on the right as Iran 50 Dinars
KM # 1142, Diameter 20mm, weight 3.41g and dated 1316 (1937).
The one on the left I am not so sure of. Same design, same diameter but it is thinner weighing 2.61g
The date is different numerals but kinda looks like 1347 to me (1968) in Persian rather than arabic numerals.
That would make it KM # 1156.
Does it look like I got that correct?
Dale