Since 1925, Iran has used the SH or Solar Hejira calendar, except for a few years when the MS or Persian Imperial calendar was used, and not the regular Islamic AH calendar, so the links in Zohar's post won't be of help to you.
As it is, conversion for these coins is fairly simple: add 621 to the first and third coins, and subtract 559 for the second one. However, neither the third digit in the first and third coins, nor the last digit in the second coin can be a "9", because the Persian Imperial calendar had been abolished by 2539, and the SH 1390's haven't happened yet; the current year is SH 1387. So unless these coins have been time-travelling...
Have another look at the coins; I suspect those "9"s are really Persian "6"s, which is shaped slightly differently to a regular Arabic 6. In that case, SH 1361 is AD 1982, and MS 2536 is AD 1977.
As it is, conversion for these coins is fairly simple: add 621 to the first and third coins, and subtract 559 for the second one. However, neither the third digit in the first and third coins, nor the last digit in the second coin can be a "9", because the Persian Imperial calendar had been abolished by 2539, and the SH 1390's haven't happened yet; the current year is SH 1387. So unless these coins have been time-travelling...
Have another look at the coins; I suspect those "9"s are really Persian "6"s, which is shaped slightly differently to a regular Arabic 6. In that case, SH 1361 is AD 1982, and MS 2536 is AD 1977.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis




















