Here are three CD 127s. On the left is the most common one showing the "lip" of the bottom wire ridge, 10 $ (found in Charlotte, NC) The one in the middle is a much more scare, TRUE straight side with a very rounded dome. Has a nice light milk patch w/ graphite pin-freckles in it. 45$ The Third is a TRUE straight side with big bubble like head. The circumference of this head is larger than the body of the insulator, 45$.......All pieces mentioned are VNM or better condition. Shipping per piece is 6$ The LAST TWO mentioned are quite scarce and came from the Wilmington & Weldon RR ROW. Thanks, Steve