Original vintage mining magazine ad, ROBERTS AND SCHAEFER COMPANY of Chicago, IL. The Number 10 Marcus Drive Head was installed for operating Marcus Screens at the Crescent Tipple of the Pittsburgh Coal Company. A similar installation at the Melcroft Coal Company Tipple operates a 350-ton per hour Marcus Screen with side picking wings for Egg and Nut sizes. Old 1928 dated mining industry advertisement.
Approximate page size 9 x 12 inches.
Original vintage magazine ad, ROBERTS AND SCHAEFER COMPANY, Engineers and Contractors, Wrigley Bldg, Chicago, IL., Pittsburgh, PA., 418 Oliver Bldg., Huntington, WV., 514 9th ..