A French mariner's lacquered brass hand-held sighting compass Doninelli, Nice, late 19th century Of cylindrical form with top surface inset with a silvered compass engraved with the eight cardinal points within outer scale calibrated in degrees set behind bevelled glass, the cylindrical body divided into two sections with the lower section incorporating inset silver collar scale divided in degrees rotating against a vernier scale engraved to a similar collar to the lower margin of the upper section, with two sets of pierced wire sights set at ninety degrees to each other and signed Doninelli a Nice, the lower section with single sight, rotation adjustment screw to underside and tapered brass handle, diameter 8cm (3ins approx.); with an English black japanned brass sextant, H. Hughes and Son Limited, London, early 20th century, the diamond lattice-pierced six inch radius frame with pivoted arm applied with HUSUN trademark label and mounted with mirror opposing aperture for the brass vernier scale, the main scale signed H. HUGHES & SON LTD LONDON beneath number 28394, the frame fitted with fixed sighting tube opposing mirror with wooden grip handle and three feet to underside, 27.5ins (10.75ins) wide overall; and a patinated brass aneroid surveyor's barometer, Stanley, London, early 20th century, with circular silvered scale calibrated in barometric inches within another calibrated in feet with vernier adjusted via knurled crown to outer track, with fine blued steel pointer and inscribed Surveying Aneroid Compensated, STANLEY, LONDON, 2023 to the recessed centre, the exterior with pivoted vernier lens and suspension loop incorporating vernier adjustment crown, diameter 8cm (3ins approx.), with original protective leather case, (3).