James Watt's Garret Workshop
1790-1819
1 Brass protractor. broken
Aeronautics
1939-1945
Douglas combined protractor and parallel rule, made by the London Name Plate Manufacturing Company Limited, used by Flight Lieutenant Edmund Bell, Royal Auxiliary Air Force Navigator.
Surveying
1905-1914
Brass protractor (22 cm) by H. Haecke, Berlin, Germany, 1905-1914. Used on the German Survey ship, Moewe, sunk in 1914 at Dar-es-Salaam, Tanzania.
Meteorology
1935-1945
Geostrophic wind protractor, designed by Lt. Cdr. Albert Edgar Gendle, R.N.V.R. Royal Naval Met. Service, 1935-1945
Mathematics
1870-1880
Unsigned semi-circular protractor.
1811-1818
Douglas type reflecting protactor in mahogany case, by Maywald, Berlin, Germany, 1811-1818. Owner: Major E. O. Henrici.
1860
360-degree protractor, made by John Benjamin Dancer.
Sandhurst protractor, boxwood, with contour equivalents, shading equivalents, horizontal equivalents, length scales, degree protractor and sighting line thread/plummet clinometer
1811-1825
Douglas type reflecting protractor without caseby the Cary family, London, England, 1811-1825.
1821-1826
Brass plane table protractor, 4.5-inch, by William Simms, London, England, 1821-1826
1880-1910
Protractor in leather bound case.
Semi-circular brass protractor by Lasnier, Paris, 10cm diameter, mid 18th century.
1843-1873
Edye's protractor for converting angled distances to level distances, unsigned, British, 1843-1873 (?).
Tools of the Trade & Personal Accessories
Brass protractor, 360 degrees brass protractor engraved "W.H. Harling, London. James Tearse". In wooden case. 350mm diam.
1843
Marking protractor, made by Abraham & Dancer.
1801-1825
Circular reflecting protractor and accessories by by William Cary, London, England,1801-1825
1875
Circular protractor, made by Joseph Casartelli.
