Just the right thing for the small trader or craftsman.
For one point: When was this little helper built by whom? Does he have a special name?
May experts use this little helper.
Up to profs.
German?
Yes.
Schmitz
Not Schmitz.
Universelle?
Not Universelle
Sachs Threewheeler?
No.
Ilo-engine?
Also not.
Geier-Motor-Lieferrad, DKW-engine?
Yes! This your next point.
Please supply the year of manufacture.
Geier Typ 100/S3 RT, 1941
Earlier
The Geier Typ 100/S3 RT (DKW 100ccm, 3,5PS) has been presented at the IAA 1939.
From 1939 on, Geier was no more allowed to produce motorcycles by the Schell-Plan. Nevertheless they produced the type 100/S3 RT until 1941, now called "Behelfslieferwagen", "ohne Bezugsschein mit Gummi". As written at the advertisement, you have sent with your puzzle.
The ad is from 1939, so we have the year we are looking for.