Moved this over since the other thread is getting near or over (after this discussion) 4 pages and it will be easier for the 69 Shelby guys to find it here.
Don't have many if any close ups of jack handles but will try and help by showing some of shat I do have and maybe we can narrow it down
Don't see the pronounced "step" in the handle of any in the pictures between the hole and the swivel end. Could be hidden/blocked in the first picture
Type, maker and such may come down to time period but I don't think we've gotten that far yet and it did not appear that you were looking for a specific application or car. Should apply to 69 Dearborn built cars also including Boss cars
Looking at the location of the hole in the handle shown in the three to the left of your second picture
Early in the production year
Next three are from the 0F4828-4829 range