Original 1966 classroom trade vintage catalog for  JOHNS-MANVILLE.  Main office was located at 22 East 4oth Street, New York, NY.

Manufacturers of COLORITH Chalkboards.

'All chalkboards shall be COLORITH chalkboard as manufactured by Johns-Manville and shall consist of strong, durable, monolithic sheets composed of inorganic mixture of synthetic calcium aluminum silicate binder and reinforced with asbestos fibers integrally mixed with chemically-resistant inorganic pigments and fillers. Chalkboards shall be furnished either Spruce Green, Woodland Brown or Charcoal Gray and either 3/16 or 1/4 inch thick'.

'COLORITH Chalkboard is a manufactured 'stone'. It is composed of an inorganic mixture of synthetic calcium aluminum silicate binder and reinforced with asbestos fibers integrally mixed with chemically-resistant pigments and fillers. The resulting chalkboard sheets are strong, dense, monolithic and integrally colored all the way through'.

Has product images, description, applications and specifications to provide product details.

Unbound from a large rare 1966 Architectural Equipment Catalog, this unique old four-page technical brochure would display beautifully matted and framed. Awesome color graphics. A fabulous addition to your retro classroom chalkboard library.