Producers Releasing Corporation, (PRC Studios) was located on Gower Street, just South of Sunset Boulevard and just north of Columbia Pictures. It was one of the
"poverty row" studios located on Gower, (also commonly known as
"Gower Gulch").
the 1942 photograph that you posted of PRC is looking South on Gower from Sunset. Columbia Pictures studio complex are the buildings just South of PRC .
Source:
Dennis's online scrapbook