Great photos to capture the details Chick!
Interesting that the Wittek clamp is dated 1st quarter of 69 for a July-built car, I guess I just assumed that most would be very close to car build date due to the large numbers of this type of part required. I've been hunting down a couple of 1/69 heater hose clamps for my 04A car, but maybe 4/68 could do just as well.....