Stamps, learning design
1 to 3 of 3
Bolivia
postage1938, May 1938 issue unwmk (no perf info)
| X | 75c | dkbl | learning |
1947, Mar 12 1947 provisional issue ovpted
| X | 1.40b on 75c | dkbl | learning | — | — |
China, PRC
1975, Dec 1 Children's Progress issue p. 11.5
| - | 8f | multi | learning |
1 to 3 of 3