The bottom one in your pictures is the
same as the 1922 I had. I believe its the
only part that is different and all the other
parts will interchange. That other part
in the lower picture is new to me. In 1922
they reversed the rotation of the prop so
yours should look like this one. Locking up
the reversing mechanism seem to be
pretty common however I found one
motor where they accomplished this
by just installing a couple screws.
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.