Not sure if this will fit 67-69 but it was used up to 1962.
If it works for any of you then you can have it free. Email me and pay the actual shipping. Not sure if the rotor is correct for the cap.
Great gesture.
Or maybe it will fit one of your other vehicles.
Here is a description I found but I can't verify that it's correct.
Replaced by GM in 12/1990 with part 1931512. Fits:
53-62 Chevy 6 cyl. Cars
53-55 Corvette
55-62 Chevy Truck w/6cyl