Simplex Machine Co. Detail of Rheostat.
Machine with rheostat.
Simplex machine, general view.
The Precision Machine Co. View of Simplex machine with new lamp-house and motor control.
Simplex film inspecting machine.
General view of Simplex machine with new lamp house, from front.
Simplex machine with lamp house detail, interior lantern.
The Precision Machine Co. Simplex motion picture camera.
View of Simplex automatic arc feeder.
Rheostat without lid.
View of machine.