Simplex machine.
Simplex film inspecting machine.
Simplex Machine Co. Detail of Rheostat.
Simplex machine, general view.
Simplex machine, general view with rheostat attached.
Simplex machine with lamp house detail, interior lantern.
The Precision Machine Co. Simplex motion picture camera.
General view of Simplex machine with new lamp house, from front.
[Simplex projector.]
The Precision Machine Co. View of Simplex machine with new lamp-house and motor control.
[Machine.]
View of Simplex automatic arc feeder.
1918 Exhibit, Madison Square Garden, interior, Simplex projector.
Small machine.