I have had this little Iranian piece for some time and have wondered about it every now and then. Perhaps some expert in Iranian will notice this and help me figure it out. It appears to be a silver 1/4 Kran and is 15mm in Diameter. The obverse (?) looks like the Y#100 but the date on the reverse looks like Year 1315. Y#100 was only struck in 1304. I can't make sense of it from the catalog. What do you think it is?