Lucas sounding machine for paying out wire in order to gauge the depth of the sea floor, invented by Francis Robert Lucas, United Kingdom, c.1878. Lucas sounding machine for gauging depth of the sea floor 1878
Accessories for Zeiss microscope by Ernst Leitz. Unidentified tool; object comprises a wooden block with curved interior and a length of canvas stretched across the length and fixed with brass studs. Includes an un-marked box. Microscope Accessory 1905-1915