This is an LS BRACH CO Strain insulator I picked up this weekend at a local Antique shop. I was ready to leave, when the woman behind the counter asked if there was anything she could help me find. I said sure, where do you keep your Purple Insulators at (just joking of course). She said she didn't have any, but she had a couple bottles and a glass thing with hole in it that were Purple. Here is the glass thing as she described it. Great piece at a great price I might add! Happy Hunting!