Argentina, 1953 Commemorative cover, with SC#605 Very good condition

Argentina, 1953 Commemorative cover Presidents of Argentina & Chile visit to Mendoza

Israel, 1960 Conmemorative Cover Olympic Games at Rome 1960 CTO VGC

Israel, 1965 Postcard Special Flight commemorating the European Philatelic Exposition

New Zealand, 1981 First Day Cover "Family Life Issue"

Switzerland, 1934 SC#226 YV#BF1 on Cover Very Fine

Uruguay, 1971 Commemorative covers 50th anniversary airmail Montevideo-Buenos Aires