Hi, I've an old battered MPP Mark III which I am trying to repair. The range-finder seems to work well, but is not linked to the bed. There is an arm, ending in a small chrome bearing. There is a bracket coming out the the right hand side of the front standard (viewed from the ground glass) which is chromed, parallel to (and just above) the bed and has a 'V' shape cut into it, facing rearwards. Whatever goes between this bracket and the bearing is missing. On the MPP users site there is a lot of information about cams for the later models of cameras with instructions on how to make different shapes for different lenses - but nothing for the Mark III. It actually states in one article: "MicroTechnical Cameras Mk's IIR and III do not have Rangefinder Cam Plates." Does anyone have any idea what should go between the arm and the bracket? Thanks.