A particularly rare barograph and recording altimeter complete with original mahogany case containing the original ink bottle, a good quantity of new charts which range from 0 - 7000 feet as well as a record of a journey over Shap Fell and through Carlisle. Lovely electro plated movement, French made and retailed in the UK by Negretti and Zambra London. The instrument comes with a provenance stating this instrument was owned by Major S/O Smith who was the officer in command of RAF Mountbatten in Plymouth. Circa 1920s
Rare Recording Barometer/Altimeter with Box and Accessories.