That's interesting, I've just acquired a Sachs Torpedo 3 speed in an early seventies CCM tandem. I'm not going to dive into it until winter, but I might need your assistance lol. Little intimidated, but I can usually figure out how to get stuff apart. It's the "back together" thing I struggle with.
Edit: and I don't know why I thought that hub was SRAM, clearly that's a sturmey. I guess it was early morning? Or something?