I also found this info:
CH. Bazi vom Zimmerplatz, 4CAC,2x youth winner, 2xBOB, IPO1
And on this web site, if you scroll down to 191 is this info:
http://www.anton-spindler.de/berichte/1997-adrk-ksz.htm
191; Erlo vom Gambrinius; NHSB 2025850; V;
Hope this helps. I have also seen Bazi vom Zimmerplatz in pedigrees where the dog is not listed as a CHampion so I hope that isn't an error.