Doheny Memorial Library, Los Angeles, CA 90089-0189 Public Domain. Release under the CC BY Attribution license--http://creativecommons.org/licenses/by/3.0/--Credit both “University of Southern California. Libraries” and “California Historical Society” as the source. Digitally reproduced by the USC Digital Library; From the California Historical Society Collection at the University of Southern California Send requests to address or e-mail given USC Libraries Special Collections specol@usc.edu
Description
Photograph of a detail shot of a Department of Public Works road roughness recorder, ca.1940. At center, a metal framework with three bicycle-style wheels is shown, a cylinder attached at left. Above this section, two letters are shown indicationg the profile wheel and counter with a "P" and a "C" respectively. This machine was drawn along the street and counted the bumps and hollows. The images is for a 1940 yearbook.
Type
image
Format
1 photograph : photoprint, b&w 20 x 25 cm. photographic prints photographs
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