According to my info this prototype was develloped during WWII, and a series of 1000 of these was planned to be rpoduced after the war. It had a 125 cc two-stroke engine and the price should be hfl.350,-. Its name should be Dafke (little Daf in local dialect). Since the series was never produced Huub van Doorne (Dafs founding man) gave it as a present to a circus clown, who used the thing during many years. On the photograph in the background of the pic you can see how it looked when it was a circus attraction.