Catalog no. 201: Buffalo Niagara conoidal fans
A 1915 trade catalogue issued by the Buffalo Forge Company of Buffalo, New York, presenting its Niagara conoidal fans to heating and ventilating engineers and contractors. The pictures are black-and-white photographs and engraved-style views of sheet-metal fan housings with riveted seams, impellers, motor mounts and flanged bases, shown from front and three-quarter angles, useful for designers studying early industrial product photography and mechanical form.
