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You searched for: Creation Date [1936?] Remove constraint Creation Date: [1936?] Creators/Contributors Bretz, J. Harlen, 1882-1981 Remove constraint Creators/Contributors: Bretz, J. Harlen, 1882-1981 Digital Format Images Remove constraint Digital Format: Images Place Of Origin [Urbana, Ill.?] Remove constraint Place Of Origin: [Urbana, Ill.?] Repository Cabot Science Library, Harvard University Remove constraint Repository: Cabot Science Library, Harvard University Subjects Loop (Chicago, Ill.)--Maps Remove constraint Subjects: Loop (Chicago, Ill.)--Maps

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