Plainville, Connecticut: The Trumbull Electric Mfg. Co., 1931. Softcover. 8 1/2" x 10", green card covers with red design and black lettering. Art-Deco-ish feel to front design and layout. Trumbull was well known as makers of switches and panel boards of all types, and custom builders of same, for special... More about THE TRUMBULL ELECTRIC MFG. CO. CATALOG 15 -- 1931; Manufacturers of Complete Interior Electrical...