Precision Machine Co. View of inserting movement in machine.
Precision Machine Co. Pulling out slide.
The Precision Machine Co. Simplex motion picture camera.
The Precision Machine Co. View of Simplex machine with new lamp-house and motor control.
Truscon Steel Co., piles of inserts.
Astoria Gas Co., machine shop.
Simplex Machine Co. Detail of Rheostat.
Consolidated Gas Co., Utilization Dept., cleaning tanks, metal ware carriers.
Small machine.
Large machine.
Simplex machine.
Monroe Calculating Machine Co., Woolworth Building.
385 Madison Avenue. Carrier Engineering Co., office lobby, glass block wall.
[Machine room.]
Universal Draughting Machine Co. Interior of Lidgerwood Manufacturing Co., ledger room.