That is not the Fairey overdrive handle or knob. Is is bent to locate it further forward away from the seats. Those four studs with a different thread size on each would have been threaded into the back of the T case and nuts used to hold the overdrive to the T case. These are overdrive parts and not available from Toyota. Been on the hunt for some of those for years. Those three little piece that look like a small car are internal pieces. There are two internal synchros, only see one. A collar and fork to shift the overdrive. There are also the two special pieces and special lock used to secure the tailshaft of the transmission to the overdrive. Problem with these overdrives haven't been made for a long time and if it's missing parts it puts the owner on the hunt for missing parts. If they can't find them it becomes nothing more than a expensive paper weight. I would suggest if you have the missing parts you edit your auction to include a picture of them.