Simplex machine, general view.
General view of Simplex machine with new lamp house, from front.
Simplex machine, general view with rheostat attached.
Simplex machine with lamp house detail, interior lantern.
Simplex machine.
Simplex Machine Co. Detail of Rheostat.
Simplex film inspecting machine.
The Precision Machine Co. Simplex motion picture camera.
Precision Machine Co. View of inserting movement in machine.
Williamsburg, Brooklyn. Austin-Nichols and Co., control and motor to refrigerator plant.
View of Simplex automatic arc feeder.
