German fluid level
German fluid level
Dip circle in glazed wooden case on wooden base
1900-1980
Dip circle in glazed case
1950-1954
Dip circle with anti-parallax mirror
1954-1983
Inclinometer in metal case
Dip circle by W.B. Nicholson Ltd.
1921-1969
Inclinometer from Farman Long Horn Aeroplane
Dip circle and magnetometer by Brunner
1884
Dip circle by Robinson, c.1830
1830
Dip circle by Robinson & Barrow, London, c.1840
1842-1845
Dip circle by Robinson, c. 1830
1830
Gough-Turner Inclinometer
Rectangular inclinometer
Dip circle with boxed needles, used by Sir J.C. Ross
1839
Dip circle by Brunner, 1884
1884
Dip circle by Henry Barrow, London, 1851-1864
1851-1864
Glaholm and Roberts Ltd. inclinometer
Dip circle and components, by Robinson, c.1830
1830