Very large guide wire strain insulator looks to be an unembossed Ohio Brass piece. VNM only issues are three tiny pings together on one of the four fins. I personally took this piece from the St. Nicholas Coal breaker outside of Mahoney City PA in June of 2001. This piece measures 6 ¾" X 4 ½" I am asking $10.00 plus actual shipping cost. All forms of payment checks, money orders and Pay-Pal (NO FEE) welcomed.