I am trying to find the accessory rail that fits into the super O track. It is necessary to operate the Lionel cars that have the shoe on the bottom. Can you help me find this? Ron

Those are the Lionel #36 remote control blades(set), I believe. I see them on Ebay from time to time.

Ron,
Try this person, he deals in Super O track selling and buying.
email hspanier@aol.com