These, along with 252 Hemingrays, were used here in western Pa. on the old Allegheny Power ( now First Energy ) 4KV circuits to hold the noodle on flat construction. There's a lot of rear property lines around the ranch here that still have both in the air. This unit has the PP Inc. incuse on the ear and needs cleaned. $15.00 + shipping. First email that says' "I'll take it.". No PayPal. Email with questions.