Stamps, 1920 air issue
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Syria
airmail1920 1920 air issue (no perf info)
| - | 1p | on issue=1920c-1p (2) | ||||
| - | 5p | graygrn | w. unwmk | |||
| - | 10p | red & bl | w. unwmk |
Belgian Congo
1920, Jul 1 1920 air issue
| X | 50c | org & blk | wharf on Congo river | |||
| X | 1fr | dlvio & blk | ||||
| X | 2fr | bl & blk | ||||
| X | 5fr | grn & blk |
Sweden
1920, Sep 18 1920 air issue wmk. wavy lines (Sweden)
| - | 10o | brn | — | — | ||
| - | 20o | org | — | — | ||
| - | 50o | vio | — | — |
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