P645-Switzerland 1978 Pro Juventute First Day Cover FDC Helvetia Bern Special Ca
P644-Switzerland 1978 Pro Juventute FDC First Day Cover Bern Helvetia Stamp
P643-Switzerland 1981 Pro Juventute First Day Cover FDC Bern 40c Helvetia Stam
P642-Switzerland 1979 Pro Juventute First Day Cover FDC Bern Helvetia Stamp Embo
P641-Switzerland 1978 Pro Juventute FDC First Day Cover Bern Helvetia Stamp
P640-Switzerland 1990 Pro Juventute FDC Cover Bern First Day Cancel Helvetia Sta
P64-Netherlands 2000 Cover – KARL V 1500–1558 Stamp + Nijmegen 10c – Commercial
P639-Switzerland 1976 Pro Patria FDC Cover Bern National Festival Helvetia Stamp
P637-Austria 1965 Vienna WIPA Exhibition First Day Cover FDC Ersttag Cover
P636-Austria 1962 Europawahlen Bad Gleichenberg Commemorative Cover Election Can
P635-Austria 1962 Europawahlen Special Cancel Cover Bad Gleichenberg 5S Stamp
P634-Austria 1961 First Day Cover FDC European Transport Ministers Conference Vi
