Iran 10 Ryals [επιλυμένο]

Hello, looking to find the dates on these 2 of dads please.

Also, are the marked grades written on the envelopes correct?

Using an Iranian date converter found at https://www.taghvim.com/converter/

the first coin (10 Riyals) appears to read (at bottom of first photo, somewhat hard to read in photo) 1327 which would convert to 1948, while the second coin appears to read 1351 which would convert to 1972. 

10 Rials 1347  N#6017

20 Rials 1351 N#9880

10 Rials probably better than Good, Very Good or Fine

https://en.numista.com/numisdoc/calendar-persian-31.html

Thank you both very much! This dating on some is hard.

Thank you for the calendar link also

You're welcome. Seeker55 confused Persian 4 (۴) with 2 (٢). The year is 1347 Iranian - Persian calendar (1968 AD).

Ok, thank you, good to know rsirian