I wasn't claiming to be an expert on the various and numerous versions of the Bonanza. It would take an aviation "archaeologist's" fine toothed comb to differentiate between one years version versus the next. I just wanted to get the ball rolling, which I think that I was successful doing. When I was about 7 yrs. old, my Dad was doing some business with Olive Ann Beech, who ran the company at the time, and she sent him a cool roll of posters of the Beech lineup at the time (including the B-18, A-65 Queen Air, the first year of the B-90 King Air, and two versions of a new model of the Bonanza F-33, one normally aspirated, one turbo). In looking at the pictures of the Bonanzas, with the same paint scheme, I couldn't tell which was which. Anyway, thanks for your input, and obvious expertise.