Telka iii double exposure prevention mechanism

[adrianlambert]

I'm restoring a Telka iii. Yesterday I took to to a friend's workshop so that he could re-chase a crossed thread in the top section but it came back with the winder mechanism in bits. I can't quite get it to go back together so I think there's a part missing. If anyone was able to help me to identify which part is missing is be very grateful.

 

[adrianlambert]

All sorted. Found some pics here. Although it's worth noting that the slotted washer is installed the wrong way around in these pics. http://herlent.daniel.free.fr/reparation/telka_iii/index.html