ARMORED 3-WAY GLASS
A New and Improved Construction
Every lens, either round or square, is caulked into a
cast iron ring, and this is embedded in the cement. Square Fresnel
Lenses give over 54% glass area.
AMERICAN 3 WAY-LUXFER PRISM COMPANY
Absolute Protection to Glass Against Expansion Pressure.
Instant and Easy Replacement of Broken Lenses.
Great Glass Area and Great Strength
Supplied in Ready-to-Set Slabs or Built on the Job. Write for Details of This New and Better Construction.
|1307 S. 55th Court, CICERO, ILL.
||139 Spring St., NEW YORK CITY