Original old mining trade vintage ad for CAPELL FAN AND ENGINEERING. COMPANY. Main office and factory was located in Monogahela, PA.  Capell Fans are Built for Either High Speed or Low Speed Work. Designers and builders of machinery, hoisting engines, belt conveyors, cages, sheaves.   Manufacturers of Patent Cappell Fans. This 1910 mining coal ventilation equipment magazine advertisement would display beautifully matted and framed.