Please check out my other quality antique glass auctions currently running!! Here is something I have never seen before in a WHITALL TATUM made insulator!! Check out the MILK SWIRLS in the front and inner skirt in this rich purple CD 154 WHITALL TATUM CO No 1  R- MADE IN U.S.A. / 11 glass railroad insulator in FABULOUS MINT CONDITION!!! $ 15.00 USPS Priority Mail shipping. I do COMBINE SHIPPING to save you $$$. I do not sell altered, fake or stained glass.