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