CD 133 [230] Brookfield insulator. This is the one with the CAUVETS PAT JULY 25, 1865 embossed on the rear crown. The color is a more uncommon green aqua for these pieces. It has the added bonus of tiny little bubbles throughout the glass and a pea sized carbon bubble with a stream of hundreds of tiny white bubbles following it at the mold line. This is shop number 3 in the series. The base has a few tiny chips and one larger chip. Additional pictures are available upon request. Price $30.00. Reduced to $25.00. Sleeper tweener color of the large shop number pieces I am currently offering.