This is a Linhof-branded Rodenstock 270mm f5.6 Rotelar in a Synchro-Compur shutter. The lens is in good to excellent shape (no scratches, haze, etc.) but there is a small dent on the rear filter ring... Nothing that interferes with the optics. The shutter could use a CLA, but works well in the upper speeds.
The Rotelar is a telephoto lens, so the bellows draw is around 150mm.