ANTIQUE SODA FOUNTAIN BEER SPIGOT TAP NICKEL PLATED BRASS For Sale

This antique spigot is untested but appears to be in good condition. I did not detect any cracks or chips. The metal is nickel plated brass and the spout appears to be bakelite. The round ball is in good condition and I am guessing it is made of onyx or marble. The brass mounting nut does not screw-on freely. It may be damaged or not the correct thread? I did not detect any mfg marks. The surface shows a lot of tarnish. I believe it could polish up nicely. I am guessing this was originally from a bar or early drug store soda fountain.