Here is a pair of CD 136 B & O insulators. The first is embossed B & O on the front skirt, and Patent / Dec. 19, 1871 on the rear skirt. This is the Hemingray produced piece. It has a couple of dings with a bruise next to the B, and a two inch base chip under it. Also a ding on the rear crown and a couple of other scattered pings. The second one is the Brookfield style with W. Brookfield /45 Cliff st. / N.Y. on the front crown, and Pat. / Jan. 25th 1870 on the rear crown, and B & O on the front skirt. It has the backwards N's. It has a ding with a halo on the rear crown, a ding chip on the upper ridge on the rear, a ping on the front dome, a very small base flake, and a few other scattered pecks. I know they sound bad, but they both actually display pretty nice. Asking $40.00 for the pair shipped to your U.S. address. How about $35.00 shipped.