Our Safety Cry If you know what BTI stands for, please leave a comment. Related Similar Images ...based on the tags: bokeh, cartoons, numbers, peeling-paint, safety-first, signs... Elevator B, used by a local farmer, stands behind an old farm truck at the edge of town. Note the severed skyway–that led to a set of grain elevators that have since been demolished. Much of the mill is wooden–even the larger chutes. Looking from the powerhouse across to the old Electrical Assembly side of the plant that manufactured products like thermostats. Most of the complex is connected by skyway and tunnel systems. Devan setting up his 4×5 camera. ‘Consumers Brewery’ set in the brewhouse staircase. Note the rails in the floor that guided cars to the coating line, the side of which is lined with the windows in the center of the image. The basement held a makeshift chapel. He bites.