Polyhedral dial for latitudes 10°-60° North (base latitude 51° 30' North). Ivory cube dial set on a base-plate, engraved in black ink. A silver compass (much tarnished) is set into the base. It has an eight-point rose with the cardinal points marked by English initials, a rusty needle, and is surmounted by a brass cylindrical pivot. A turned ivory pillar, with a pivoted ball joint near the top, supports the cube.

The horizontal dial has an hour scale numbered clockwise IIII-XII, I-VIII with a wreath depicted in the centre. There are four vertical dials. The South vertical dial, marked 'SOUTH', has an hour scale and looped garlands around the gnomon. The North vertical dial, marked 'NORTH', also has an hour scale with a centrally depicted wreath. The West vertical dial has a diagonal hour scale with parallel hour-lines and a depiction of cherubs holding the ends of a garland. The East vertical dial also has a diagonal hour scale with parallel hour-lines. The latitude arc is depicted on a ribbon and is divided anti-clockwise 10°-60°.

The string plumb line and ivory bob, which also act as the latitude indicator, are attached to the top of the cube by tape, the original metal loop being missing. The ivory is badly cracked in various places. The gnomons are standard polar gnomons, made of silver. This is very similar to the German cube dials (AST0385, AST0386 and AST0525) and may have been modelled on them. The base latitude is that of London.

For more information regarding this dial please refer to the OUP & NMM catalogue, 'Sundials at Greenwich'.