CD 134 Patent/Patent insulator in hemingray blue. The full embossing reads (F-Skirt) PATENT/DEC 19 1871 (R-Skirt) PATENT/MAY 2 1893 with a missing middle bar on the A in May. It is a [055] embossing index in the price guide and has a value of $200 to $250. Overall it is in great condition. There are two fisheye dings on the front crown, a ding on the front crown, and two fisheye dings on the wire groove. Overall it is in very near mint condition.

$50 plus shipping. That's 1/4 of the low end book value!