Original 1930 road construction and maintenance trade vintage catalog for the WALLACE & TIERNAN COMPANY, INC.  Main office and plant was located in Newark, NJ. 

Manufacturers of Dry Battery Operated Marine and Highway Flashers.

Products include .  The W & T Dry-Battery-Operated flasher is available both in universal and one-way types. It is operated from a group of standard 1 1/2 Volt dry batteries, sufficient for six months operation. Its source of light is a small electric lamp. It is not only the least expensive flashing signal in the first cost, but also the cheapest to maintain. In the W & T Flasher, there is no dangerous interruptions due to lamp failure. The weakness is overcome by the use of an automatic lamp changer mechanism. It is so designed that when one lamp burns out, another is automatically brought to the focal point and goes into service. The flash is obtained by electrically operated pendulum regulated at 45 flashes per minute.

Has product images, illustration, description, application and specifications provide product details.

Unbound from a large rare 1930 Municipal Index, this unique old three-page technical brochure would display beautifully matted and framed. Nice graphics. A fabulous addition to your retro industry library. Pages are loose.