Volney W. Mason & Co., manufacturers of patent friction pulleys, friction clutches for connecting shafting, hoisting machinery and elevators
Contributors: World's Columbian Exposition (1893 : Chicago, Ill.)
Publisher: Volney W. Mason & Co.
Published: 1893
Place of publication: Providence, R.I
Language: eng
Notes: "At World's Fair, 1893, Chicago, Machinery Hall, Section 15, Column J-28"--P. [1].