Been enjoying this thread. I am in the process of getting this car repainted. It is a '73 911 E that has been tweaked into an RSR configuration bit by bit over the past 25 years. Currently fitted with a 2.8 liter Mechanical Fuel Injection, twin plug motor. A full color change is planned, changing from Light Yellow to Tangerine. Planning to have it all finished by autumn of 2018.
I found the mechanical Russian Aircraft Clock, with both local time on the large face and two integral elapsed time stop clocks - one 12 Hr "flight clock", and a second 1hr clock. All run independent of the others. I can imagine this was the kind of aircraft clock fitted to a Tupelov Tu-95 Bear on those extended reconnaissance flightsthat the USSR conducted in the 1970's. I have it regulated and running well. I plan to find a spot in the cockpit to install it.