Foreign coin ID help.

Factual Questions
21

Thanks for the offer sam but there’s no need. I’m never going to sell these, they’re keepsakes. And I think the link I provided above got me close enough.

22

#8 is definitely from the Showa era. samclem’s date is correct.

Also, there’s an older #2 (1 yen) coin in the upper right of photo 2. The year on that looks to be Showa 31, or 1956.

23

Thanks, Sublight. I forgot the Showa Era started in 1901.