NewSWITZERLAND · 1955–1961Switzerland 1955 — Attractive group of 5 Balloon Flights with 1955 Basel-Rikon (Basel Fair) with special…VFUS$ 37.50
NewNETHERLANDS · 1942–1977Netherlands 1942 — Useful group of 2 balloon & 3 First Flights covers with 1942 first balloon commemorative,…VFUS$ 32.50
