P521-Fiji1979New Definitive Series Part 1 Official First Day Cover FDC 2c Dudle
P520-Switzerland 1967 Geneva Motor Show Pro Juventute Wildlife Stamps Cover / Ph
P52-France 1982 Léon Blum First Day Cover FDC Paris 18 Dec Premier Jour Stamp
P519-Switzerland 1966 Registered Cover Bern to Buchs Zurich Helvetia Stamps Post
P518-Switzerland 1966 IMPO Zurich Helvetia Basel Trade Fair Stamp Block Card
P517-Switzerland 1966 Zurich Import Fair CERN Nuclear Research Stamp Block on Ca
P516-Swiss Pro Patria 1966 Heinrich Federer Block of 4 Cover – Luzerner Kantonal
P515-Switzerland Helvetia Pro Natura Kingfisher Bird Cover Commercial Mail Zuric
P514-Switzerland 1966 Pro Patria Registered First Day Cover FDC Block of 4 Bern
P513-Switzerland 1966 Pro Patria FDC First Day Cover Helvetia Bundesfeier Bern 3
P512- Swiss Geneva 1967 Salon de l’Auto Cover with Helvetia Fox Stamp & Pr
P511-Swiss Geneva 1967 Salon de l’Auto Cover with Helvetia Fox Stamp & Pro Juven
