Stamps of Switzerland, 16 Sep 1957
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official
1957, Sep 16 WHO issue unwmk p. 11.75 (6 stamps)
| - | 5c | gray | — | — | ||
| - | 10c | ltgrn | — | — | ||
| - | 20 | ver | — | — | ||
| - | 40c | bl | — | — | ||
| - | 60 | redbrn | — | — | ||
| - | 2fr | brtvio | — | — |
1957, Sep 16 UPU issue (6 stamps)
| - | 5c | gray | UPU monument | — | — | |
| - | 10c | ltgrn | Pegasus | — | — | |
| - | 20 | ver | Pegasus | — | — | |
| - | 40c | bl | UPU monument | — | — | |
| - | 60 | redbrn | Pegasus | — | — | |
| - | 2fr | brtvio | UPU monument | — | — |
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