Electrostatics 1933
ERPI Films was one of the largest producers of educational films in the 1930's. They were a division of Western Electric, the manufacturing and supply division of the Bell System.
ERPI Films was one of the largest producers of educational films in the 1930's. They were a division of Western Electric, the manufacturing and supply division of the Bell System.
This film from 1943 explains the mysteries of sound recording on film.
This short films see men crafting furniture.