A collection of pocket sighting compasses, inclinometers and other related instruments Various makers, late 19th century and later Comprising a French compass with silvered two-piece dial divided for every degree to circumference set within a folding square mahogany case, 8.5cm (3,375ins) wide; an unsigned oxidised brass surveyor's compass with floating silvered scale divided into half degree increments to outer track beneath hinged prism magnifier and pivoted filters opposing crosshair sight backed by a hinged mirror, with circular snap-on cover, 7.5cm (3ins) diameter; five various military issue sighting compasses, 6cm (2.375cm) wide and smaller including one in a leather pouch-type case; a circular oxidised brass perpendicular sight stamped STANLEY, LONDON 5.1cm (2ins) diameter, in red leather case similarly signed to interior, and a circular oxidised brass WATKIN MIRROR CLINOMETER by J. HICKS,MAKER, 8 HATTON GARDEN, LONDON further inscribed REG 14 MAR 1881, 7cm (2.75ins) diameter, in leather case, together with five assorted pocket compasses and a brass folding map magnification lens stamped CASARTELLI, MANCHESTER, (15).