S27969

Aarau airmail 1913 - always wanted Aarau airmail stamp in perfect quality with 5 Rp. Tell on official airmail postcard " Flugspende für die Schweizerische Militäraviatik " with special airmail postmark " Schweiz. Flugpost Start Aarau 6.IV.13 " in perfect quality and with certificate by Rellstab