German kitchen knives pre reunification (Mono)

Hello,
I have two Kitchen knives from Mono a german company, which I inherited from my father so i can't really ask him. I would like to know which Model they are. I couldn't find anything online when searching.
They inscription on the knive says :Mono inox eisgehärtet molybädan(inox ice-hardened molybdenum), Solingen West Germany.

The company seems to be rather small so i don't know if anyone knows more.
I apologize for my english im not a native speaker.
Thanks for any help!