Kurt,
I like that. However I have noted an alternate location for the 20-30 transfer. I have seen it mounted on the top tube just ahead of the lug. It is that way on my Superbe, I have seen it on a couple of other bikes from the early 70's, I need to check my pictures, but it maybe only on the Superbes.
I also have pictures of a stunning 196? Superbe if you are interested.
You used to have a huge chart that had a lot of the characteristics through the years, where did that go?
Aaron