Film processing, photograph, circa 1920

Film processing, photograph, Los Angeles, California, USA, circa 1920. Interior with slotted wooden floor, several sets of circular wooden racks spun on a rod with a trough underneath. At each station stands a man wearing rubber boots and a long apron spinning a long strip of film on the rack to be processed. In the foreground are partial views of half barrel troughs with a remaining milky liquid flowing down the drain. Pencil inscription on reverse: "Property of Warren Travsere 6379 Ivarene Ave. Hollywood, Cal. Presented by Dave Berger". In good condition, minor staining on reverse.