Original flooring trade vintage catalog for MIDLAND CHEMICAL LABORATORIES, INC. of Dubuque, IA. Manufacturers of Floor Preserve and Finishing Materials. Use of wood, concrete, composition, linoleum, marble, terrazo, tile and slate. Lohseal, Mid-seal, Floorgloh, Gymloh, Waxloh, Sungloh, Enamel, Cleansoleum, Tileoleum, Krysloh, Mid-cedar dust layer, Klensloh, Scrubbing compound. Disbound from a large 1938 floor materials catalog, this unique old three page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro flooring construction library.