What was throwing us was that bottom adjustment you are talking about. We were envisioning a star wheel that you insert a brake spoon to turn to adjust. I think Bob nailed it that you are really talking about a couple of studs sticking out of the bottom with flattened ends so you can loosen a the nut with a wrench then turn the stud with a smaller wrench. If so, those are '39-41 style. The ones you are referring to with only two adjustment bolts up top are called '42-48 style ( I am doing the years from memory, could be off a little) But essentially, Ford improved the later ones to only need a minor adjustment, whereas the early ones had minor and major adjustment bolts.

My '27 has what you have, and my '23 has the later ones, both are fine, only different.

Don