Dating whitall tatum glass insulators
In conjunction with the expansion of rural electrification in the early 20th century, there was a major boom in the manufacturing of insulators, peaking from the 1920s through the 1940s with production in the millions per year.Commonly made from glass or porcelain in a dazzling array of shapes and...This section is meant to be a unique look at groupings of Hemingray made insulators.Insulators were originally designed to keep the wires linking telegraphs and telephones insulated from the wooden poles that held them aloft.* = Microflaws are aged (not manufactured) defects that are not obvious without careful and close visual inspection.
They were the glass insulators that were used to protect homes against lightening strikes.
The NIA was established and officially founded on July 7, 1973 at the National Show held in Hutchinson, Kansas.