Switzerland 1928 - Postal stationery cover for airmail. Commemorative postmark

Description
Switzerland 1928 - Postal stationery cover for airmail. Commemorative postmark
With address

Switzerland 1928
Postal stationery envelope for air mail. Commemorative cancellation.
No defects.
See pictures.

Lot details
Geographic Origin
Switzerland
Composition
unopened letter
Short Description
Postal stationery cover for airmail. Commemorative postmark
Has certificate or expert signature
No
Year of oldest stamps
1928
Condition
With address
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