1926/80 (ca), lot with mostly unused and used airmails and Zeppelin stamps, with u.o. German 1 and 2 M. Polarfahrt unused with part of gum, Bolivia issue 1930 with inverted overprints and tête-bêche pairs ans Spain “Huérfanos de Correos” stamps incl. overprints-issues and blocl of 4+6, as well as Italian airmail vignette “Volo Transpolare 1926” in block of 4, mostly fine
