Original 1939 insulation trade vintage catalog for the EHRET MAGNESIA MANUFACTURING COMPANY.  Main office and plant were located in Valley Forge, PA.

Manufacturers of Heat Insulations.

Products include Magnesia, Enduro and Durant Pre-sealed Insulated Pipe, all are fully featured.

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

Unbound from a large rare 1939 Process Industries Catalog, this unique old two-page technical brochure would display beautifully matted and framed. Nice graphics. A fabulous addition to your retro insulation library. Pages are loose.