Just recently picked up three different lightning arresters- a black glaze PHILCO, a medium blue BRACH-4004-RADIO/LIGHTNING ARRESTER, and a light green glaze JFD(in an oval) TELEVISION LIGHTNING ARRESTER. Marked on the side AT-102 JFD MFG. Co. INC. BKLYN. NY. The Philco and Brach are about 4" long. The JFD is 3 1/2". All are in excellent condition. Asking $15.00 plus postage for the lot. Thanks for looking!