View of Simplex automatic arc feeder.
Simplex machine, general view.
Simplex machine, general view with rheostat attached.
Simplex machine.
General view of Simplex machine with new lamp house, from front.
[Simplex projector.]
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.
Cross Paper Feeder Co.
1918 Exhibit, Madison Square Garden, interior, Simplex projector.
The Precision Machine Co. Simplex motion picture camera.
Simplex machine with lamp house detail, interior lantern.