1 to 5 of 5
airmail
1921, Jul 1 (no wmk info) (no perf info)
| - | 60c | Curtiss Jenny over Great Wall |
1929, Jul 5
| - | 60c | Curtiss Jenny over Great Wall |
1932 1932 airmail issue
| X | 60c | bl | Junkers F13 over Nankoupass with Great Wall |
1940 1940 air a wmk issue wmk. yu
| - | 60c | bl | Junkers F13 over Nankoupass with Great Wall |
1940 1940 air b unwmk issue unwmk
| - | 60c | bl | Junkers F13 over Nankoupass with Great Wall |
1 to 5 of 5