Stamps, 31 May 1968
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Austria
airmail1968, May 31 1968 air issue unwmk p. 13.75x14.5
| X | 2s | brn | Etrich Dove | |||
| X | 3.50s | dkgraygrn | Sud Aviation SE-210 Caravelle | |||
| X | 5s | bl | Douglas DC-8 in front of globe |
China, PRC
postage1968, May 31 Mao support for African-Americans issue p. 11
| - | 8f | multi | Mao Tse-tung |
Ethiopia
1968, May 31 Human Rights Year issue p. 14.5
| - | 15c | ltrd & blk | ||||
| - | 1$ |
Korea
1968, May 31 Postman's Day 1968 issue wmk. winged circle (no perf info)
| - | 5.00w | multi | Mailman’s pouch | |||
| - | 7.00w | multi | Mailman |
United Nations
1968, May 31 unwmk
| - | 6c | multi | UN HQ | .20 | .20 |
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