Is it a new CD?, not according to Dario, it will be listed as a notched CD 1010. This light green aqua piece is not mint, but pretty darn good shape for an 1850s one of a kind insulator. It has outer dimensions somewhat like a CD 1010, but two notches like the CD 1014. Cavities on the ends more like the 1014, but the wire groove bottom is squared off like the 1010, but it is more narrow at its opening and wider down deeper into the groove. It is 2 1/8" long by 2 1/8" wide at the wider end by 2" wide at the narrow end. It appears to be a new version of the glass block. Asking $5,000, insured, shipped, 5% donated to ICON, 5% donated to CJOW. I can send more pictures as needed. Thank you! Chuck Alexander