Stamps, classroom design
1 to 2 of 2
Oman
postage1971, Jul 23 National Day 1971 issue unwmk (no perf info)
| - | 100b | multi | classroom | — | — |
North Vietnam
1960, Sep 2 development
| - | 12xu | classroom |
1 to 2 of 2
| - | 100b | multi | classroom | — | — |
| - | 12xu | classroom |