Here's an oldie but goodie. True green CD 133.1 Patent Dec 19 1871 signal. Really a sharp piece of telegraph era glass in a great, tough to get colour. Rear skirt is 3/C and condition is V NM, the base has a clamshell chip on the bottom resting edge that is flat and fairly thin.A bit of this can be seen in the photo. There's a small pocket of glass missing from the side of the skirt, it was caused by another insulator touching it while still hot and a large bubble in the WG lip shoulder. More pix on req. Book $50-$75.First mail to me.... $55 + actual shipping.