SWITZERLAND 1937 SWISSAIR ADVERT ENV + STAMP LABEL KLM HOLLAND WINDMILL + CLOCK. Swissair printed advertising envelope from Zurich to Newport Mon GB, 30c single franking, Zurich Flugplatz cancel, scarce Swissair K.
M blue stamp label illustrated with windmill, watch and mountains used as seal on the back. This item is in the category "Stamps\Europe\Switzerland".
The seller is "fahlagoon" and is located in this country: GB. This item can be shipped worldwide.