Laboratory Models - Metropolitan Sanitary District of Greater Chicago

ICHi-156458

Title: Laboratory Models Description: Laboratory models used in experimental work on dehydration of sludge at North Side Sewage Treatment Works, 1931-1932, pressure rolls for removing moisture from sludge between felts, Illinois, April 8, 1932 Date Depicted: 1932 April 8 Creator: Metropolitan Sanitary District of Greater Chicago Creator Role: creator Physical Format: cellulose nitrate film Copyright Notice: © Chicago Historical Society, published on or before 2017, all rights reserved. Credit Line: Chicago History Museum, ICHi-156458 Accession Number: 1980.0059 Storage Location: Nitrate negatives of the Metropolitan Sanitary District of Greater Chicago, 1930-1937, Box 6 Horizon Bib. No.: 4714 Max Pixels - Width: 7984 Max Pixels - Height: 4809 Help improve this content