Scale: Unknown. A model of a Trotman's anchor (circa 1860), improved from Porter's design. The model is made entirely from brass which has been lacquered. It consists of a shank which is square in section through which is a single piece crescent-shaped arm which pivots on a large fidded bolt. The upward facing palms are flat and triangular in shape and include a flat flange mounted at a right angle at its widest end. Just above the arms is a pair of bow-shaped gravity shackles which swivel on a bolt. The stock is circular in section and tapers towards its ends and is complete with flattened spheres. It is fidded with a metal wedge on a small chain allowing it to be un-shipped and stowed flat aboard ship. At the top of the shank is a swivelling bow shackle held in place by a pin.