I will add that I have never seen a "T" type jack in a Kansas car but this does not mean than none came that way.
Here are some more photos of an unrestored original Kansas jack.
Original hook.
Original base next to an inventory base. Notice slight difference.
Original mechanism.
Original wing nut over an AMK repop.
Comparison of masts all from 70 Chevelles.
For color comparisons sake, here is the mast from a very low mileage 70 Malibu previously owned by Chad B.