I've found some more Japanese Postal Cards!
1. Official of some sort?

2. 5y. Diet

3. Same as #2, but slightly different shade of green.

4. 2y.Diet. Any postal purpose to the red or purple handstamps?

5. Postmark has the three stars at bottom - any significance? There's also a faint box handstamp of unknown purpose.

6. Interesting printed text in purple.

7. Older postal card

8. Same type, different color than #7

9. Mystery Red handstamp

10. Purple circular handstamp of unknown purpose
