7002-404. GREEN patent clamp on inclinometer IOB. Patented by Hiram Green and manufactured by Tower & Lyon, this is the brass model with the level vial canted forward. Marked with Green's 3/31/91 patent, vial wet, missing front screw, some tarnish to brass. Box has split seams in lid but labels mostly intact and state "Tower's Unique Pocket Level Patent Mar. 3 1891" on side lid and has incorrect patent date. Top label has description of tool. Good 60-120