I dug these both on the Bulls Bridge Line in Connecticut that used the CD 319 Prisms and the M-3062 New Lexingtons. They were used on the communication line on a short cross arm under the power insulators. U-926 and the U-705. They show signs that they were dug. The U-926 has the R=oo incuse. Yours for only $10 plus $15 USPS Medium Flat Rate. PayPal friend/family for payment.