Octagonal sounding lead, which still retained part of its length of rope. Found in the mystery chest, this plummet was one of two different types of sounding devices used to determine the depth and composition of the ocean floor. One end of the lead tapered toward the eye for the rope. The opposite end was a depression with many deep, haphazard grooves which would be filled with wax or tallow that would collect samples from the bottom as the weight hit the sea floor. |