Details
F. STEFLIISCHEK, Vienna
A lacquered-brass variation declinometer, the combined magnetic variation and dip circle with silvered scale divided into four quadrants, plain bar-needle supported by hardened-steel axis located in twin agate bearings secured to the vertical circle with fine vernier read-out adjusted by tangent screw, with screw-clamp/release on tapering pillar support from horizontal circle with vernier, tangent screw, fine adjustment and clamp, the limb with bubble level on three screw tripod stand -- 15¼in.(39cm.) high
A lacquered-brass variation declinometer, the combined magnetic variation and dip circle with silvered scale divided into four quadrants, plain bar-needle supported by hardened-steel axis located in twin agate bearings secured to the vertical circle with fine vernier read-out adjusted by tangent screw, with screw-clamp/release on tapering pillar support from horizontal circle with vernier, tangent screw, fine adjustment and clamp, the limb with bubble level on three screw tripod stand -- 15¼in.(39cm.) high
Further details
See colour plate