Bidspirit auction | 7 Series of Swiss stamps
7 Series of Swiss stamps from the 1960s, with Geneva postmarks (Salon de l'Auto), and 1 postcard from 1938 with Basel postmark (Tag der Briefmarke).
7 Series of Swiss stamps from the 1960s, with Geneva postmarks (Salon de l'Auto), and 1 postcard from 1938 with Basel postmark (Tag der Briefmarke).