CD 133 insulator made by the Brookfield glass company
CD 133 insulator made by the Brookfield glass company
The image shows a vintage, glass insulator with a teal hue, used historically on telegraph lines.
Name/Title
CD 133 insulator made by the Brookfield glass companyEntry/Object ID
chs-016041Description
A vintage, glass insulator with a teal hue, made by the Brookfield glass company. Used historically on telegraph lines of the Erie Railway.Use
CD 133 insulator made by the Brookfield glass company. This is an early style made in the 1870's. The back of the dome is marked Cauvet's patent July 25, 1865. This was the patent for the process to thread glass - prior to that patent insulators were threadless. The patent dates on the skirt are: JAN, 25, 1870 & FEB 22, 1870 -- these are the reissue of the threading patent and a patent for an insulator press. ER stands for the Erie Railway where this insulator was used. Brookfield made glass insulators from the early 1860's through 1922 and were based out of Brooklyn N.Y. Above from: http://en.allexperts.com/q/Collectibles-General-Modern-684/2013/1/brookfield-insulator-5.htmCategory
Erie, Erie-Lackawana, Conrail