Turn of the century photography at its best! This is a 15" Petzval lens by Bausch & Lomb, made somewhere at the end of the 1920's or shortly thereafter. The lens is in good shape, glass is fantastic, although there is some some internal dust (won't affect images in the slightest, and could be cleaned) and a some light denting of the rear lens ring (see photos), in great condition for it's age. Should cover 8x10 and 5x7, and may cover 11x14 at closer distances. A great vintage brass lens to give your images a fantastic vintage feel, whether on large format or digital! Get the lovely "swirly" bokeh that the Petzval lenses are known for!