Original vintage magazine ad, ROBERTS AND SCHAEFER COMPANY,  Engineers and Contractors, Wrigley Bldg, Chicago, IL.,  Pittsburgh, PA.,  418 Oliver Bldg., Huntington, WV.,   514 9th Ave. Coal Mining Plants, Menzies Hydro Separators, Shaker and Apron Loading Booms, Rotary Car Dumpers, Power Car Feeder, Coal Tipples and Cleaning Plants, Arms Concentrating Tables and Screens. "More Profit From Every Ton". Old 1928 mining equipment and coal mine dumper car advertisement. Would display nicely matted and framed.

Approximate size 9 x 12 inches.