Switzerland. 1948. Winter Olympic Games + 100 years Swiss State and 300 years of independence + "Pro Patria" professions (IV) and Country Houses (III) + "Pro Juventute": 100th Birthday of Ulrich Wille and Alpine Flowers (VI), 4 complete sets, u/m. (Michel 492/495, 496/499, 508/511, 514/517 - 24E)