P404-Australia 1980 Matthew Flinders FDC First Day Cover Melbourne Philatelic Bu
P403-1977 Switzerland First Day Cover (FDC) Aviation Pioneers BERN Ausgabe Fligh
P402-Switzerland 1977 First Day Cover FDC Aviation Pioneers Bern Cancel Flugpion
P401-Switzerland 1977 FDC Aviation Pioneers Cover Bern First Day Cancel Flugpion
P400-Switzerland 1978 FDC Jura Canton Issue 40c Stamp Bern First Day Cover Helve
P40-Czechoslovakia 1962 ROH FDC First Day Cover Prague Workers Recreation Stamps
P4-Switzerland 1966 Pro Juventute FDC Squirrel Block of 4 Stamps Bern First Day
P399-Switzerland 1975 Pro Juventute FDC Cover Bern Flower Stamp 50+20 Helvetia F
P398-Australia 1979 International Year of the Child FDC Melbourne Philatelic Bur
P397-Switzerland 1978 FDC “Workplace Safety” Helvetia 3x 40c Stamps First Day Co
P396-Switzerland 1965 NABRA Bern FDC First Day Cover Helvetia Stamps Philatelic
P395-Vatican 1965 FDC Uganda Martyrs Set (3 Stamps) First Day Cover Rome Cancel
