90/8 Super angulon lens with 100 degree coverage for 4x5 cameras.  Linhof "signed" version.  Includes Linhof panel to mount directly on a 4x5 Technika.  
NB: The white spots you see in the lens (schneideritis) is common with Schneider lenses of this period.  It is marks on the front side of the black paint in the lens only, not on the glass, and doesn't affect the image quality.