This is a nice heady duty tripod made by Linhof that uses a clamp piece to mount a head rather than a 3/8" screw.

They are in good condition with moderate wear and work perfectly. Some of the components show a bit of rust (see photos) but everything is working as it should. The movements are smooth. Two of the center legs are missing caps so you have to be careful not to extended them too far before locking.

It measures ~7' tall when fully extended.