Having looked at all the different autocycles, mopeds and cyclemotors, compliments on your beautiful website! But, I didn't see a Berini in your list. So, herewith you see my restorated Rijwiel met hulpmotor:
The bicycle is a Gazelle from 1927 with original "Eton Minor" luggage carrier, the motor is a Berini M13 twinstroke 32.5 cc hulpmotor (we call it the Eitje). It was made between 1950 and 1952 and has a speed of 30 to 35km/h.
First published, January 2002