This is a Rex 20:1 speed reducing gearbox which is in great working order. Made by Rex, Perfection, American Division, Darlington, SC. Model # ST 1820SB, Serial # 1172F.
Title of your page goes here 1947 AISC STRUCTURAL STEEL CONSTRUCTION MANUAL 5TH This is a 6 1/4" x 9 1/4", semi-pliable hard cover book titled and subtitled Steel Construction / A Manual for Architects, Engineers and Fabricators of Buildings and Other Steel Structures.
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