Today I'm offering a colorful set of U-60's. Made by the Lima Insulator company circa 1904-1908. These all have the typical filed base rest, flat collar at the start of the threads, and dime sized depression at the top of the threads. Just a few tiny flakes missing from use on each. I'm asking $20.00 plus actual postage mailed in the lower 48. A personal check or MO is fine. Sorry, I don't use PayPal.