2022-05-202022-05-201958https://hdl.handle.net/2152.3/11456First-day cover featuring The Brussels Universal and International Exhibition from Cabo Verde in 1958. Illustration of a "gigantic metal construction," named the Atomium.First-day cover.Stamp collectingPostage-stamp albumsCarbo VerdePortugalUnited States. Office of the United States Commissioner General, Brussels Universal and International Exhibition, 1958.Nuclear energyAtomic Energy 15