1927. University of Chicago. Department of Sociology. Negative blue line print. "April 1927." "L.S.R."; Scale [ca. 1:7,920]; photocopy; Master and use copy. Digital master created according to Benchmar...
1906. Sachs, Theodore B. (Theodore Bernard), 1868-1916. Chart II.; Scale [ca. 1:1,200]; Master and use copy. Digital master created according to Benchmark for Faithful Reproductions of Monographs and Ser...
1920. University of Chicago. Department of Sociology. Blue line print. Shows residential area, vacant area, commercial frontage, railroad property, and transit lines.; Scale [ca. 1:8,000]; photocopy; M...