Auction #93 Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World

1948, In Memory of Sculptor Francois J. Bosio, 50c-4f, 5+5f - 15+25f, postage and air post, two complete sets of five or four epreuves de luxe, in addition two epreuves de luxe collective of five or four values, sunken die in excellent quality, no gum as produced, NH, VF, Dallay #316-20, PA28-31, C.v. €810, Est. $200-$240