Frank S. Betz Co., (Optical Instruments, etc.,) Hammond, Ind. Very few young boys or girls. Location: Hammond, Indiana.

Frank S. Betz Co., (Optical Instruments, etc.,) Hammond, Ind. Very few young boys or girls. Location: Hammond, Indiana. Date Created/Published: 1908 October. LOC original medium: 1 photographic print. Photos of child labor by Lewis Hine.