View of Simplex automatic arc feeder.
Simplex machine, general view.
Simplex machine.
[Simplex projector.]
Simplex machine, general view with rheostat attached.
Simplex film inspecting machine.
Simplex Machine Co. Detail of Rheostat.
General view of Simplex machine with new lamp house, from front.
[Gas Arc Lighting.]
Simplex machine with lamp house detail, interior lantern.
The Precision Machine Co. Simplex motion picture camera.
42nd Street and Park Avenue, S.W. corner. Airlines Terminal Building, general view from street, with Automat.
The Precision Machine Co. View of Simplex machine with new lamp-house and motor control.
92nd to 93rd Streets between Amsterdam and Columbus Avenue. Joan of Arc Junior High School, general view of rear from S.E..