Minerva 1907 4 ½ HP 577 cc side valve V-twin frame # 2081 engine # 30627 Mr Sylvain de Jong, born in Amsterdam on 5 January 1868, moved at the age of 13 with his parents and two brothers to Brussels. After working for some years as a journalist, he went to the U.K. to study the safety bicycle production. In 1895, S. de Jong, his brothers and other investors started a factory in Antwerp, to produce and repair bicycles. For these bicycles, they chose the name “Mercury”. Only two years later, after ...