Catalog pages of Brookfield-made glass insulators. What year? 1908-09

By Colin Jung; posted October 28, 2016

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These are catalog pages from an undated catalog. Based on the power pieces depicted here, can anyone tell me the approximate age range of the catalog?

According to Elton Gish, the Brookfield and Locke glass insulator illustrations are the same illustrations that appear in 1908-1909 dated supply catalogs.