 Complete the following phrase:  Louis Zimmer 8 September 1888  12 December 1970 was an astronomer and clockmaker to the King of Belgium. Most notably in 1930 he built the Jubilee or Centenary Clock, which is displayed on the front of the Zimmer tower. The Zimmer tower  is a tower in Lier, Belgium, also known as the Cornelius tower, that was originally a keep of Liers fourteenth-century city fortifications. In the museum near the tower in addition to many of Zimmers other clock is the huge clock he constructed for the 1935 