On October 15, 1984 (c. 8:30 a.m.), a thick, black smoke surrounded the Smithsonian Institution Building. It was caused by a fire in a tar-melting machine in the bottom of the Quad construction pit., 1984, by Mark Avino, black-and-white photographic print, Record Unit 371 - Office of Public Affairs, The Torch, 1955-1960, 1965-1988, Smithsonian Institution Archives, Neg. no. 84-11864-12A.
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