View of Simplex automatic arc feeder.
Simplex machine, general view.
Simplex machine.
Simplex machine, general view with rheostat attached.
[Simplex projector.]
General view of Simplex machine with new lamp house, from front.
Simplex Machine Co. Detail of Rheostat.
Simplex film inspecting machine.
The Precision Machine Co. View of Simplex machine with new lamp-house and motor control.
[Gas Arc Lighting.]
Broadway and John Street. Automat, detail of entrance.
1918 Exhibit, Madison Square Garden, interior, Simplex projector.
Simplex machine with lamp house detail, interior lantern.
The Precision Machine Co. Simplex motion picture camera.
42nd Street and Park Avenue, S.W. corner. Airlines Terminal Building, general view from street, with Automat.