A late-19th Century lacquered brass R & J Beck Microscope Accessory Case, including mid-19th Century Andrew Ross objectives, apparently original to case - 1/2in with correction, dated 1856 and 1/4in with correction, in cans, seven Beck objectives, in cans, three eyepieces, four graduated Lieberkuhns, Abbe condenser with five dark ground stops, polariser and analyser, stage bull's-eye condenser, stage parabolic illuminator and later double nosepiece, in fitted mahogany case, 355mm wide, G-VG