Original electrical trade vintage catalog for CHASE-SHAWMUT COMPANY.  Main office and factory was located at 390 Merrimac Street, Newburyport, MA. Manufacturers of Fuses, Amp-trap, C-Q-T, trions for every circuit. Protection engineers to electrical industry. Disbound from a large 1952 architect construction materials book, this unique old one page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro electrical equipment library.