BillinMo
Well-Known Member
Hey Robert - nice finds. For age, I'd guess the ITE is probably from the 60s or 70s. The gray known as "sky glaze" was intended to blend into the sky to make the insulators less obtrusive on the pole, and that became the standard insulator color in the USA in the mid-late 1960s. Supposedly Ladybird Johnson suggested sky glaze as a "beautification" project but it seems to be a story circulated with no real evidence behind it. The Pinco is probably from the 1930s up to 1945. Earlier Pinco products from earlier have the incuse marking, and yours has an underglaze marking. After 1945, Pinco used an underglaze marking with "PINCO" enclosed in a box. Also, that mottled brown color phased out sometime after WW2, when a dull chocolate brown become the standard.