Hi everyone. Today I went to a camera show and bought myself a 4x5 Speed Graphic camera. I'm trying to figure out just how old it is. It has a Graflok back, which I've come to understand means that it's newer than 1949. It also has the Kalart Rangefinder on the side, which apparently means it's older than 1955. My question is: is there any way to tell the exact date? The lens is a Wollensak Raptar 135/4.7 in a Rapax shutter, if that helps. My second question is about the shutter and the flash connection. When I bought the camera I also got a Graflite flash gun with a 5" reflector. How do I connect the flashgun to the camera? As I understand it, there is a cord that runs from the flashgun to a solenoid, which actuates the shutter. In various pictures on the web, I've seen flash guns with a red plastic button on the column. I don't have one of these buttons? Is this part of the cord that connects to the solenoid? Finally, the shutter has two "terminals" protruding at about 4 o'clock (if the "p" in "Rapax" is 12). Am I correct in guessing these serve the same function as a PC socket on a modern shutter? When using the flash gun, do I have to connect these terminals to something as well? Sorry to ask so many questions, but I've looked on the net and all I can find are bits and pieces, but nothing solid. Thanks for your help!