An oxidised and lacquered brass Dipleidoscope signed E.I.DENT'S Patent Meridian Instrument 82 Strand & 33 Cockspur St. LONDON with dust cover; and another Dipleidoscope unsigned (lacking dust cover) on brass platform with leveling screw, bubble level and trough compass, in case; with a manual DENT on the Dipleidoscope Portable Reflacting Transit Instrument 1875