Old brass straight barrel lens with two lens groups engraved BF&Co. 2.  Has no iris or shutter.  Stands 3 1/2 inches tall.  Threaded end of barrel measures approx. 49-50mm across. Approximate focal length of 5 inches (125mm).  Comes with old leather case.  International via Ebay Global Shipping Service, any customs duties or import charges ore the responsibility of the buyer.  Please see our other photo items.