Documented evidence
The verified official register entry lists Koller Eugen as registered in the lawyers’ register with the professional title lawyer at SJ Rechtsanwälte GmbH in 1963 SG.
Source
Amtliches Anwaltsregister Kanton St.Gallen · https://www.sg.ch/recht/gerichte/anwalts----notarwesen/anwaltsregister---register-der-notare/anwaltsregister---register-der-notare-a-z.html
Context
This entry reflects only the verified state of the source. It does not imply any further legal or personal assessment.