Various Instruments, Negretti and Zambra lacquered brass Surveying Aneroid, with silvered dial, in leather case, 80mm diam.; Dallmeyer three draw Telescope, 210mm long retracted; Swiss Coradi Amsler Planimeter, in fitted case, 1924; 19th Century Dutch brass Prismatic Surveying Compass, in fitted mahogany case; European Abney Clinometer with sighting tube and wooden handle, in wooden case, 200mm wide; iron dividers; and incomplete opthalmoscope; (a lot)