The brake vacuum booster located on the firewall connects to the carburetor via a hose and to a cylinder located below the passenger side; from this cylinder another hose comes out and is not connected to anything.
There are two brackets (bottom image) attached to the frame on the driver side just behind the master cylinder, and according to the illustration on page 18 of the 1948 – 1956 Ford Truck Parts and Accessories Illustration Catalog, these brackets seem to be to attach the brake booster. The illustration on page 17 seems to be more in accordance to what I have.
I am not sure what is going on here, but I suspect that there is a mixture of various models. I would like to know if I can do away with that awful looking thing on the firewall.