It always puzzles me why Mr. Cate's dating very often differs from the list published in DGJ by Jeff Stephens. I have seen nothing published by Mr. Cates indicating he has superior information and that his list is correct. I would like to see his "corrected" date list in total and the reasons for the differing dates. It certainly would be of major benefit to Sauer collectors. I do not have his book, is it published there? If so, I also should buy his book.