Name/Title
Insulator, Telephone LineEntry/Object ID
110.80.11Description
Material: glass, metal. Size: 2 1/2" diameter x 4 1/2" H. Color and description: clear heavy glass - metal threaded for attaching to telephone pole pin - stamped: "Pyrex - T.M. Reg. U.S. Pat. Off. - Made in the U.S.A. - Pat. Appd. For I E "Context
Although the Corning Glass Works has been in existence since 1868, the Pyrex patent was not issued until 1919, and the trademark was not granted until 1925. The plant still operates and is currently one of the leading manufacturers of fiber optic cables. Several types of insulators were manufactured by Corning including the largest single piece glass insulator ever made. Insulators were produced from 1924 through 1951.Cataloged By
Legacy Photo ImportLexicon
Legacy Lexicon
Object Name
Insulator, Telephone LineClass
Telecommunication T & ECategory
Tools & Eq for CommunicationCreate Date
August 5, 2002Update Date
November 21, 2024