This is kind of a nice little early insulator. This CD 120 is crown embossed PAT. DEC. 19. 1871 with a 5 on the back side of the crown and an A on the skirt. There is a base chip about 3/4' long. I thought because it was an early piece that seems to be popular with the collectors and because it had pretty good color it should be worth $20. maybe I was dreaming a bit. So tonight, in the sell it cheap spirit, I'll offer it for $12 plus shipping.