CD 1038 [030] (embossed in a circle on top) CUTTER PAT APR.25,04, green glass tree insulator. 2 dings and a 1/8" flake on the top, usual flaking on the bottom, outside edges with the largest flake 3/8" x 1/8". This is about the best condition I've seen for one of these. No wear in the wire groove or in the holes where wires were run to secure the insulator to a tree, so I think the piece was never put into service. Ribbed bottom. $575 postpaid, PayPal friends and family, check, or money oder.