puch, say it like "book" with a "p". (I say it like the dog though).
They are may by AD Austro Daimler an Austrian mulitnational. You have a cavalier frame which is low-mid range, but great for a conversion. I had one recently, it was from the late 70s and looks just like yours.
Came with weinmann brakes, nevar crank and weinmann 700c rims. Also had a shimano crane derailleur which may not have been original.