The forementioned lines belonged to the Narragansett Electric Company. They were part of the New England Electric System and served Rhode Island. Their sister company was the Massachusetts Electric Company, which also served hundreds of thousands of customers in MA. The transmission pole construction style seen here is classic New England Electric System (aka New England Power) and was popular through their service territories from the early 1930s through the late 1950s for 13 and 23kv lines. Galvanized steel "chicken-wing" braces and 10-foot creosoted crossarms with heavy duty insulator pins were the company standard for such line construction. Typically, Locke 1035 multipart insulators were used in Massachusetts upon the earlier (30s and 40s) lines. In RI, Thomas three-piece insulators with mottled glazes were frequently installed, especially for 23kv service.