While living in Austria in the early 90s, I bought a well-cared-for Stollenwerk (late 70s vintage, I'd guess), made in Aachen. It's still one of my favorite bikes. The frame is Reynolds 531 throughout. When I got it, it had a campy headset, fork, drop-outs, seatpost and hubs, with full late-70s/early 80s vintage dura ace drivetrain and brakes (Crane rear derailleur).

Haven't had much luck finding information about Stollenwerk. Any suggestions?

TIA

John