Wow - this design was sure cloned. Mine was made by Star-D Mfg. Co., Inc. New York NY.
Yours looks to be in better shape. My elevation and rotation lock shaft ends were originally some type of thermoplastic, and have long ago broken off.
They now have washers fitted into the end of the shaft to give something to grip onto.
I have used this tripod in all sorts of weather to support my crown graphic, and it is solid.
At a Nikon Workshop in the mid 'seventies the instructors recommended "But your last tripod first." They demonstrated a Tiltall ( then made by Leitz ) I finally got one a few years later, and after decades of struggling with tripods; this is indeed my last.
Wish a Canadian dealer could have produced a Macheroni Tiltall in 1956. "No such thing!" I would have been spared much grief.
No disrespect to the Tiltall; I like them fine. But I think they definitely leave a lot to be desired when used with larger cameras. They will get the job done, but man, the second you move up to a more robust tripod for 4x5, you are going to say, "Wow! So this is what a solid tripod feels like!" This one looks nice, and reasonably priced, though.