The California Drum Barracks provides history of 'Confederate Egg' insulators used in the Civil War.

Detailed information and photographs on styles, materials, colours used for railway telegraph insulators from the UK. Sections on designers, markings and manufacturers of these products. Sub sections include railway crockery, insulator fixings, telegr...

Collections of Ian Macky, including glass insulators, prism glass, and related history.

Collector, research expert, historian's site

Insulator collecting site including photo album, complete collection index, how to get started, links, and insulator embossings of North America.

A family-oriented web-based forum dedicated to all aspects of the insulator collecting hobby. Includes an 'Insulator of the Week' section.

Conducts periodic auctions, performs appraisals by appointment and offers to purchase collections.

Pictures insulators used along Canadian railways and telegraph/telephone lines in the 19th and early 20th centuries. There are related links and an email contact as well.

Photo gallery of porcelain insulators made in Argentina.

Photo gallery of glass insulators made in Argentina.