TWO ANEROID SURVEYING BAROMETERSSHORTS & MASON AND ELLIOTT BROTHERS, LONDON, EARLY 20th CENTURYThe first with 2.75 inch circular silvered register inscribed Surveying Aneroid,PENSATED, No C.28039, SHORT & MASON, LONDON, MADE IN ENGLAND to the recessed centre within barometric scale calibrated in inches divided into fiftieths and outer altimeter scale annotated 0 to 6000 divided to ten foot intervals and with moving Vernier to outer margin, the aluminium case with pivoted magnification lens and knurled crown for adjting the outer Vernier within the spension ring, with original leather carrying case; the second with 4.25 inch circular silvered register with subsidiary 0-5,000 1ST and 2nd CIRCLE dial and inscribed Surveying Aneroid, repeating circle reading 1st Circle 0 to 5000 ft, 2nd (ditto) 5000 to 10000 (ditto) over Elliott Bros. LONDON,PENSATED to the recessed centre, within double concentric scale calibrated in barometric inches annotated 22 to 25 then 26 to 31 divided into hundredths within outer altimeter scale double-numbered for 0 to 5,000 and 10,000 feet divided for every ten feet and with movable Vernier labelled ASCENT to outer edge, the chrome plated case with pivoted magnification lens and knurled crown for adjting the outer Vernier to a post at the top, (2).The first 8cm (3.125ins) diameter, 4cm (1.5ins) deep; the second 12.7cm (5ins) diameter, 5cm (2ins deep) excluding magnifiers.Provenance: The exhibition and archive collections of Barometer World Meum, Merton, Devon.Elliott Brothers are recorded by Clifton, Gloria Directory of British Scientific Instrument Makers 1550-1851 as succeeding William Elliott and Sons at 56 The Strand, London in 1853. The firm of Short and Mason are recorded in Banfield, Edwin BAROMETER MAKERS & RETAILERS 1660-1900 as operating from 62 Hatton Garden, London 1873-75 then 40 Hatton Garden from 1876. They were leading makers of barographs and aneroid barometers well into the 20th century later merging with Taylor Instruments in 1969.