Switzerland
Switzerland 1971 - 2nd decade of development 1v
2016 Opening of the Gotthard Railway Tunnel
Switzerland 1970 - Badge of the "Pro Infirmis" foundation
Switzerland 1971 - World Conference of space telecommunications 1v
Switzerland 1968 - Events - Stylized mountains & club badge
Switzerland 1969 - Postal aircraft DH-3 (1919) & jet aircraft DC-8
2017 Stamp Day - The 90th Anniversary of the Sainte-Croix Philatelic Society