William Comyns, London.

The miniature horn case has a 9k gold handle, bezel, feet, door hinge and handle and detailed delicate decorative inlay.

The white porcelain dial has Roman numerals for the hours and steel-cut hands.

The 8-day time-only movement is wound and set off the 3/4 backplate.

All the gold parts are stamped and hallmarked 9k gold and William Comyns, London.