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+"Philadelphia Pennsylvania USA" +1924 stock footage and images
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A diagram of subsurface strata depicts how pure water system eliminated typhoid epidemics in Philadelphia, United States.
Precautions taken to prevent diseases in Philadelphia, United States. A diagram of Philadelphia subsurface strata depicts how pure water system eliminated typhoid epidemics
Date: 1924
Duration: 50 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675032270