I have 2 555s and another one which is gutted (Can't remember the number). I have a friend that was a Bell PBX man and he may have the BSPs for this one...Will check in a few days when I get time. I'm 53 and I've been collecting since I was 5. In that last picture, are all of the internal wires cut off at the jacks and lamps? or just down at the wooden block?