This 5 Bolivianos Timbre Pro-Aeropuertos issue from Bolivia (1955) was created as a fiscal-style postal stamp to support national airport development. Printed in a bold monochrome blue, it depicts a classic mid-century passenger aircraft flying over an airport control tower—an emblem of Bolivia’s expanding aviation infrastructure during the 1950s. The inscription references the decree of 30 June 1955 that authorized its issue, adding important historical and administrative significance. Produced by Lito. Unidas – La Paz, it is a desirable piece for collectors specializing in Latin American airmail, airport-fund issues, or aviation-themed philately.