Box chronometer, sidereal time, number 3198, metal / wood / glass / [bone], made by Victor Kullberg, London, England for F Allerding, Sydney, 1875, used at Sydney Observatory, Observatory Hill, Sydney, New South Wales, Australia
A sidereal time marine chronometer fixed in a black lacquered, wooden box with a hinged lid. The chronometer sits in a metal ring that is fixed inside the box with two screws. The chronometers mechanism is encased in a circular brass surround. The dial or face of the chronometer is white with black Roman numerals from 'I' to 'XII' marked around the edge. There is a smaller dial below the hands on the main dial. This dial is marked from '10' to '60'. A circular glass cover sits over the face of the chronometer. There is a small compartment at the back of the box in which a brass winder key is stored.
Observatory stock number 80.