B65-80 BRASS INCLINOMETER. F.W. King. 9" base, with adjustable 2-5/8" level vial. The base is marked "F.W. King Baltimore", but there is a mounting hole in the center of the signature and it was originally probably "F.W. & R. King." Frederick and Richard King began their careers in London and relocated to Baltimore in 1851. In original fitted mahogany box with a tight check in the lid. Fine 150-250