Sinker and valved tube with detaching appliance, for pianoforte wire sounding machine, c.1873. Sinker and valved tube with detaching appliance 1870-1876
Baillie weight-detaching appliance; designed by Navigating Lieut. C. W. Baillie and used on H.M.S. Challenger Weight-detaching depth sounder, 1867-1873 1873