A portable Maximum Height Recorder with rotating bezel and outer ring engraved 0 -- 12,000 feet, a movable inner ring marked Ascent and Descent, an inner dial calibrated 20 -- 31in. inscribed SHORT BROTHERS AERONAUTICAL ENGINEERS, LONDON AND SHEPPY, blued steel counter balanced hand, the white metal bowl with old laquer, contained in a lined box -- 4½in. (11.5cm.) dia, together with an etching depicting a cloudscape with a distant bi-plane inscribed in pencil 10,000 feet and signed Harold Wyllie