Coca Cola Pocket Knife

I would actually like to show and ask rather than tell. I also appologize for my lack of photography skills. Anyway, I bought this Coca Cola pocket knife for my dad at an antique mall and would actually like to know more about it if anyone can help me. On the blade is the Coca Cola logo. Above that is the word Geniet ("drink" in German I believe) underneath the logo its says GEREG HANDELSMERK (I think). At the base of the blade is a bottle opener with the words ROSTFREI ALTENBACH SOLIGEN, which is refering to the place it was made. The handle looks like some sort of pearl inlay. Anymore info on it would be awesome. When was it made? Why was it made? Why is the style different from the others? Thank you!