1. Traveling book cart (library) visiting factories workers at National Cash Register (NCR) during noon hour for them to read. Collection: Early 20th Century Engineering Lantern Slides Set: Personnel Location: Dayton, Ohio Date: undated Format: Image Agent: unknown
2. Women performing synchronized calisthenics at National Cash Register (NCR) during a work break. Collection: Early 20th Century Engineering Lantern Slides Set: Personnel Date: undated Format: Image Agent: unknown
