Description Good Example of a Patent 1897 Bausch & Lomb Monocular Microscope s/n 56626, having two oculars, three objectives and cells, a triple turret, a substage condenser and diaphragm; the pillar, barrel, plateau and coarse and fine adjustment controls are brass with a clear lacquer finish (lightly spotted), in the original mahogany case, along with a box of ten sample slides. 14" x 7" x 9" case. Very good condition. Lacking key for case lock.