On the way to Union this year I came across an AB MacDonald that while missing a few parts seems to be in relatively good shape. I am hoping that some of you can help me locate the components I am missing. I would prefer original parts but realize that may not be possible. I am looking for the following: a. The slip on concert mandrel, ( I know Jean-Paul Agnard had reproduction ones, but it never hurts to ask.) b. the small key like nut that attached the mandrel to the left side of the machine. c. A reproducer d. an original winding key. I did get a repro from Ron Sitko. Thanks for any assistance you can give me. Alan Christensen