This rare antique brass Dallmeyer Pentac 3'' (75mm) f/2.9 barrel lens has a 31mm mount. There are scuffs and scratches on its exterior and there is haze inside of it. There are also cleaning marks on the exterior of the glass and there are marks at the center point of both the front and back-facing elements. It is free of any fungus or separation to its elements. Its aperture adjustment is stiff but functional.
