Having some experience with similar issues, but on a 65 tilt, it sounds like the problem may be in the switch adjustment below the column since the internals in your pic look to be fine.

It may be the signal switch below the dash bottoming out too soon and not allowing connection or the spring clip (left of your #3 in pic) to seat on the cam. That cam is what locks the lever in either up or down (green circle)  The cancelling is done by hitting the areas in the red circles

Thank you very much for the recommendations thus far. I greatly appreciate your time and knowledge. Yes, I to have the correct canceling cam, the correct switch, and the correct cable for a tilt wheel. If you look carefully in my first picture at Number 1 and Number 2, you can see that there is a metal tab broken off on Number 2. This tab is a crucial part to the operation I am sure. Also, if you look carefully at Number 3 and Number 4 of my original picture, you can see that whitish plastic "stud" or "tit" and also by Number 3 a round plastic ball which has slipped out of place. I am positive that this ball should fit into some kind of socket behind the center post which Steve has circled in green. By the way, thank you Steve and Darryl; your observations are accurate. I have tried the signals in all tilt positions but they do not lock into place nor cancel. In my latest picture, circled in yellow, you can see the part that I am hoping to find. It is a one piece part that must include the missing part located by Number 2 in my original picture. I have read extensively on other forms and have found many owners with similar and even identical problems but the word out there is that no one makes any replacement parts other than the cam, switch, and cable. Please keep the suggestions coming.

From 1964 Pontiac Serie 7000 Shop Manual and Supplement.....#9 in the illustration below.......