Blue Glass Telegraph Insulator Jan 25th 1870 and Jan 14th 1873 markings Visible For Sale

The product is a blue glass telegraph insulator marked with the dates Jan 25th 1870 and Jan 14th 1873. This vintage collectible item would have been used to insulate electrical or telecommunication devices during the late 19th century. The visible markings on the insulator provide a unique and historical piece of equipment that would be sought after by collectors interested in telecommunications and electrical history.