This is a common style produced by Hemingray for Owens Illinois. These insulators were usually set in a bracket of four insulators to transpose lines either on the crossarm or in mid-span.
2" H x 2 7/8" W
• NO EMBOSSING • NO NAME • OWENS-ILLINOIS
Rarity Scale (1-10):
Very Common (2)
Extended Inner Skirt Variant
These come in several different inner and outer skirt variants. This particular piece is one of the taller specimens, with an extended inner skirt that makes it about 3/8" taller than the average CD 1049. These seem to be less common.
Round Wire Groove Variant
No Name and No Embossing variants have been found with rounded wire grooves (compare to the square wire grooves of the Owens-Illinois embossed pieces). At this time, it is unknown if Hemingray manufactured these pieces.