Because both of the two bottom coins are from Iran, the dates on them are not regular AH dates, but Iranian Islamic Calendar (Solar Hegira or SH) dates. SH 1363 is AD 1984, and SH 1371 is AD 1992.
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