An S. Smith & Sons aircraft cockpit clock, the signed black dial with white Arabic hours and detailed 'X41626', the glass with inner ring of red Arabic hours, diameter 8.4cm, together with a Waltham Watch Co CDIA (Civil Date Indicator Aeronautical) aircraft clock with eight day jewelled movement, case width 8.1cm and a British aircraft altimeter MK.XVIA, case width 9.3cm.Buyer’s Premium 29.4% (including VAT @ 20%) of the hammer price. Lots purchased online via the-saleroom.com will attract an additional charge of 6% (including VAT @ 20%) of the hammer price.