Original wood trade vintage catalog for THE DOW CHEMICAL COMPANY. Main office and plant was located in Midland, MI. Manufacturers of Wood Protection. Dowicide 7 protects wood poles, crossarms and other products against insects and decay. Cedar poles already in service can be protected against shellrot by simply spraying with the Pentachlorophenol Oil solution. Unbound from a large 1943 architectural catalog, this unique old one page technical brochure would display terrific matted and framed. Nice graphics. A marvelous addition to your retro wood library.