A GEORGE V SILVER TRIANGULAR DESK CARRIAGE TIMEPIECE COMPENDIUM WITH BAROMETER, COMPASS AND CALENDARTHE CASE MARKED FOR JOHN MANGER, LONDON 1916The Swiss made circular eight-day movement with visible mainspring within a manually wound rotating drum applied to the backplate, incorporating hand setting wheel to centre and stamped SWISS MADE, 496 (Swiss cross symbol) 497 to the winder, the 1.75 inch circular white enamel Roman numeral dial with blued steel spade hands set within bevel-glazed circular bezel, the triangular case engine-turned with vertical line decoration throughout incorporating front-hinged side panels, the left hand side with a calendar comprising an aperture for month of the year (adjusted via a disc to the interior) within seven segments counting dates of the month and rotating glazed bezel engraved with days of the week, opposing right hand side fitted with an aneroid barometer inscribed MADE IN LONDON to centre, calibrated in barometric inches and with the usual observations within rotating glazed bezel fitted with a steel recording pointer, the top with hinged triangulated handle over a compass to centre, the underside hallmarked for London 1916 makers J.M within a shield; with original red Morocco covered travel/display case gilt embossed with a coronet for a Duke of Duchess over monogram S.M.The timepiece 7,5cm (3ins) high with handle down, 8cm (3.125ins) wide.Provenance: Private collection, East Midlands.John Manger is recorded online (at silvermakersmarks.co.uk) as clock and watch case maker working from Holborn Circus, London from before 1882. The makers mark on the current lot was registered in January 1899.