Walker’s brass depth log with two dials, one reading 0 to 30 fathoms and the other from 0 to 150 fathoms. The rotor is free to rotate as the log is lowered, but when the line is drawn up again a locking piece drops down and holds it in place. Stamped with anchor mark and signed T. Walker’s Patent and number 343. The lead has a piece of rope to be attatched at the sounding machine. On the lid of the original pine case remains of instructions. To the top of the lid a brass retailers plaque of H. Hughes, 59 Fenchurg Street, London.