View of Simplex automatic arc feeder.
Simplex machine, general view.
Simplex machine, general view with rheostat attached.
General view of Simplex machine with new lamp house, from front.
Simplex machine.
[Simplex projector.]
Simplex film inspecting machine.
Simplex Machine Co. Detail of Rheostat.
The Precision Machine Co. View of Simplex machine with new lamp-house and motor control.
Broadway and John Street. Automat, detail of entrance.
[Gas Arc Lighting.]
The Precision Machine Co. Simplex motion picture camera.
Simplex machine with lamp house detail, interior lantern.
42nd Street and Park Avenue, S.W. corner. Airlines Terminal Building, general view from street, with Automat.