Hugo: Ten. I was 24 years old and everyone else in the group was likewise in their mid twenties. My first task was to persuade people to listen to me. A precise analysis of strengths and weaknesses helped. I also had some doubts about my work at that time because Pim Koeslag had already set up the structures, in accordance with his ideas, for the ateliers where calibers FC 930 and 935 were assembled. No Fields Found.