Michel Velleman left his native Groningen for Amsterdam. From the twenties, he performed as a 'humorous magician, professor Ben Ali Libi'.
In 1924, the 'Nieuwsblad van het Zuiden' wrote about him: 'Ben Ali Libi is a handy magician who dumbfounds anyone present with his incredible tricks. All those tricks are naturally too numerous to mention, but he was very popular. No-one would be bored spendin…