to include a lens marked "Dubroni's Patent London", body G, rack & pinion teeth skip, Waterhouse stops, none present, optics G-VG, some light cleaning marks present, lens length 151mm, lens front element diameter approx. 57mm, together with an unmarked lens, body G-VG, rack & pinion work very well, Waterhouse stops, none present, optics G, some internal haze & speckling, lens length 145mm, front element diameter approx. 53mm, also with another unmarked lens, body F, heavy patina, rack & pinion working, Waterhouse stops, one present, marked f/6, optics P-F, some fungus & haze present,