Schneider Kreuznach Componon-S 240mm f/5.6 enlarger lens with 4x4 lens board and front cap. The front filter ring is dented. You can see it in the photos. The glass has some light fringing haze and cleaning marks. I suspect that it would give good results nonetheless. It could be CLAd and made better. The lens is cosmetically clean. The aperture control works smoothly and correctly.