“Corner of Liberty and Fifth Avenues 10:55 AM” 1940
When Pittsburgh realized it had a pollution problem.
All images courtesy: Smoke Control Lantern Slide Collection, ca. 1940-1950, AIS.1978.22, Archives Service Center, University of Pittsburgh.
“Corner of Liberty and Fifth Avenues 10:55 AM” 1940
When Pittsburgh realized it had a pollution problem.
All images courtesy: Smoke Control Lantern Slide Collection, ca. 1940-1950, AIS.1978.22, Archives Service Center, University of Pittsburgh.
