Zürcher Sechse-lauten 1972.
Special Cancellation on Special Envelope
|Description||The Sechseläuten is a traditional spring holiday in the Swiss city of Zürich celebrated in its current form, usually on the 3rd Monday of April, since the early 20th century.
Themes: spring holiday
Stamp Sc. 540 – Automobile Associations
Special Cancellation – Automobile Post Office.
|Used/Unused||Special Cancellation – Automobile Post Office , 16.04.1972|