A Victorian rosewood eight-day marine chronometer of small size and with experimental balance

A Victorian rosewood eight-day marine chronometer of small size and with experimental balance
Denham, Leeds, No. 881. Circa 1880
The silvered dial signed Denham, Leeds. 881., Roman hour numberals, blued steel fleur-de-lys hands, subsidiary up-and-down dial 0-8 at VII, seconds dial at VI engraved and red waxed AUXILIARY COMPENSATION, both subsidiary dials with blued steel hands, small size eight-day movement (spotted frame 78 mm. diam.), reversed fusee, Earnshaw escapement with cut bimetallic balance with unusual auxiliary comprising blued steel strips bridging the two gaps in the balance rim, circular heat compensation weights, polished steel helical balance spring, spring foot detent with polished steel locking pallets, brass bowl and gimbal, three-tier rosewood box with quarter round brass edging and double brass stringing to the front and top lid, velvet-lined lid, the middle section with inset rectangular bone plaque inscribed DENHAM 881 recessed brass handles, within the box a rating certificate from Simpson Benzie, Cowes Observatory, dated June 10 1891
86 mm. dial diam., 165 mm. sq. box