Lots 240 - 241, Catalogue of Auction #41 Raritan Stamps, Inc

Lot   Cat.#
240  B83

Semi - Postal issues

1928, Louvain Library 5f+5f, set of 20 large die proofs in different colors, approximate size 95x95mm, each is numbered at the bottom from "C1" to "C20", very fresh, NH, VF and rare
241    227, C1 var

Pioneer Flight cover

October 16, 1931, Special Air Mail Flight pre-printed postcard on line "Antwerp - London", franked by two stamps, including red overprint on airpost 50c blue, specially issued for this flight, cancelled by Antwerp Exposition postmark, two flight cachet (one on reverse), VF and scarce