I am looking for any information, pictures, stories and collectibles from the Casino Zurich (aka Kursaal Zürich, Casino La Boule, Kongresshaus Zuerich, Spielkasino Zürich...).

The casino closed years ago and it is hard to find any information about it. Even today's GM of the congress center where the casino was located wasn't able to provide more than the picture published with this message...

Any help is appreciated!