Original oil and gas trade magazine vintage ad for NORTHWEST ENGINEERING COMPANY. Main office was located at 1513 Field Building, 135 South LaSalle Street, Chicago, IL. Ease of operation with the Feather Touch clutch control. Smooth, effortless control means greater accuracy and ease in setting loads around rigs. Model 25-D. This unique 1959 old oilfield petroleum rig industry crane equipment magazine advertisement would display beautifully matted and framed. Nice graphics.