Found this when looking for some info on the web

[Brendan]

http://www.equusbicycle.com/bike/index.html

Seems to have a resonable number of brochures and technical info, found a decent exploded diagram of some shifters I was trying to piece back together after dropping them on the floor :?

 

[bowser]

nice one
some useful info and links
been looking for that columbus chart
cheers
bowser