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Source:
Colnect
Issued by:
Switzerland
Function:
airmail
Date:
5/22
/
1938
Denom:
75(c)
Overprint:
Ovpt color:
black
On:
No base stamp identified
On-desc:
50(c)-gray&scar-unissued
Color:
gray & scarlet
Design:
Watermark:
Perf:
Catalog value:
Prev:
1937 40c issue=1935 air provisional d=front view on=1932-20(c)-front view unwmk perf=11.5
Next:
5/1/1941 30(c) ultra issue=1941 air d=plane over Jungfrau unwmk perf=11.5
External links:
Colnect 21986-.._1938-Pro_Aero
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