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this model is the same as the Puch Bergmeister. it appears to be mid-1960's example.
made by Styria (Puch/Steyr/Austro-Daimler) of Graz, Austria.
en.wikipedia.org
there is a wonderful forum thread here on one from 1967 in the same colour which was put out at the curb for "neighbourhood clean up day." (!)
it was adopted by a forum member who was a first-time restorer and did a wonderul job, both with the restoration and with the documentation of the process:
My Mid-60's Sears Road Bike... (pic heavy) 188 (Classic & Vintage) : 07-28-14 by OrangeBike
your example looks to be in fine shape.
hope you have lots of good fun with it.
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