View of workers standing in front of boiler equipment in factory. "Heine Safety Boiler" and "Federal Sugar Refining Co. of Yonkers" stamped on equipment. Printed on front: "Spooner, Wells." Stamped on back: "Spooner & Wells, Inc., photographers, telephones 3472-3473 Columbus, 1931 Broadway, New York." Handwritten on back: "Machinery, 1911."
