I've added a lot more neon sign insulators to my collection since I last posted and thought collectors might enjoy some pictures of them. This picture is of the (Spook) porcelain type which fall under the patent by Robert C. Smalley 1,755,971 April 22,1930. from Claude Neon Lights and Signs Co. Top Row L-R- No Name with a single hole, Milhan Union/21 ES (American Sign Co Kalamazoo, MI.), Milhan 21 WS (wood scew),CS/ 2/ SNP, has ridges on side, not sure of the company. Knox 7060 (has a wood screw), No Name two holes, Knox 7069 ,single hole wood screw, No Name short, No Name Tall (both off white and were also used in airplane radio standoffs). Bottom Row L-R- No Name Tall, No Name single loop stand off, U.S.A. Kolux/ Pat. Pend/No. 120-grey (Kolux Bros. Schenectady, N.Y.), Csa/ SS in Diamonds(Smith & Stone Georgetown Canada),U.S.A./Kolux/Pat. Pend/No 120-white, Transco TC-100 (Transco Co. South Carloina made in China). The last piece I bought because I wanted a porcelain Electrode housing but to my suprise it was something more spectacular in next picture.