1967 1992 Habib Bank A.G. Zurich Silver Jubilee (Golden in color not silver)

I have a square "silver jubilee" and I say "silver" due to the color looks to be golden. But the square is:
58.75mm X 58.75mm X 4.75mm. Weight of 152 grams. I have had this for years and have been just moving it around my house and I do not know much about it. But here is some more info that is on the square.
Front only has the word Habib Bank A.G.
Back has 1967 1992 Habib Bank A.G. Zurich (incorporated in Switzerland) Silver Jubilee.

If it Helps take a look at these two Web Pages that have some information.

http://www.worldofcoins.eu/wiki/Habib_bank_tokens and http://www.worldofcoins.eu/wiki/File:Medal_Habib.jpg

Ian.