Mixed Franking

Although Switzerland is centrally located in Europe and has major north-south and east-west trade routes crossing it, few mixed frankings of Swiss stamps with those of other nations have been necessary. More commonly, mixed frankings are found on mail sent by Zeppelin between World Wars.

This cover shows mixed franking of Swiss and Liechtenstein stamps on a postcard that traveled from Frauenfeld to St. Gallen aboard the Graf Zeppelin on November 2,, 1929.