Listed is a very rare CD 102.4 embossed on base N.E.TEL.& TEL Co. - Insulator is not mint but a very nice example, damage consists of a base flake 3/8 inch but does not remove any embossing and lower wire rim damaged nearly all the way around insulator. - Blue aqua - Books up to $1500 asking $475 plus shipping. Still a very nice-looking insulator. Two views, front and back.