This is the definitive work on North American glass insulators and is a must have for every collector. The books are long since out of print and show up for sale infrequently.

Volume 1 contains the history/evolution of the insulator and the companies and people who made them.

Volume 2 is a catalog of known (N. Amer. glass) insulator styles and embossings (with photos) at the time of publication (1990). It has much more history added from Vol. 1.

These are often referred to as "The Bible" of American glass.

Condition is excellent and they were in my possession since new. They are in comb bindings and measure 9 x 11 1/2".

Price is 58.00 including Media Rate shipping.