Auction # 2506 WORLDWIDE + ARGENTINA: Special auction Punta del Este Exposition

YEAR 1939, UPU CONGRESS IN ARGENTINA: Fantastic group of programs, menus, invitations, list of authorities of the various delegations, etc etc., many are signed by the attendees, also an express cover sent on 21/MAY/1939 with postal franchise to the Argentine secretary of the Congress with an invitation to a lunch hosted by President Ortiz, and much more, all of very fine quality. Unique lot, extremy rare!!