72Reproduction of part of work in later work

72  Reproduction of part of work in later work  (1) The copyright in an artistic work is not infringed by the making of a later artistic work by the same author if, in making the later work, the author does not repeat or imitate the main design of the earlier work.  (2) The last preceding subsection has effect notwithstanding that part of the earlier work is reproduced in the later work and that, in reproducing the later work, the author used a mould, cast, sketch, plan, model or study made for the purposes of the earlier work.