8IN. RADIUS PLATINUM SCALED VERNIER SEXTANT BY CARY LONDON, CIRCA 1840, constructed in lacquered brass, 'T' frame with arc inscribed and numbered Cary London, Platina & Gold, 1021, platinum scale divided to 150°, vernier with gold scale, swivel magnifier and bubble level, adjustable sighting tube socket, black painted mirror and shade assembly with threaded cap over adjusting screw, ebony handle with mounting recess for stand, on three brass feet, contained within fitted box complete with accessories and later retail label in lid for National Physical Laboratory, Kew Observatory Richmond, Surrey. UK
Number 1021 not found on sextant, only in boxlabel