So it turns out the shutter speed dial for the Contax G1 is held on by two tiny screws on opposite ends of the dial. Somewhere along the line, both of the screws worked their way out and the dial fell off. I still have the dial, but no screws. Are there any ideas what size they are, and where I could get more? The camera still works fine, it's just hard to set now. They appear to be some type of eyeglass ones--absolutely tiny.
Well that wound up working. They didn't have the exact screws, but the ones I got should hold for the foreseeable future. Contax used some strange set-screw sort of thing instead of a normal screw which I doubt I'll run across any time soon.
They're not really strange. In England they're "grub screws" in the US "set screws".
If you have identified the thread size you can get them from some place like Grainger or possibly small parts company(that's their name)