I think the model pecking order is 1) Ultima; 2) Superleicht; 3) Vent Noir; and 4) SE
The Classic Rendezvous site will be helpful. I think Dale must be updating the Austro Daimler section right now as I was unable to access it. I know that there are some AD catalog scans on it though. Also a serial number chronology to help date your bike. Dale?
Also, bulgier.net and click on old catalog scans. There are several Austro Daimler catalog scans.
Jeff Pyzyk
Milwaukee, WI