Unless I am.....
...missing something here Mathias, the pic provided is the "top" of the mast. At the bottom of the mast, there should be two little "studs" that come out each side. Those studs slide into your mast base (1st pic), and then acts like a hinge to raise. I have the same set up on my 1972 O22 and I tell you, it is very easy to raise this mast with this set up with only two people.