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SURVEYING INSTRUMENTS
A fine oxidised and lacquered-brass tachaeometer,
Details
A fine oxidised and lacquered-brass tachaeometer,
signed on the horizontal plate Otto Fennel Söhne in Cassel, No. 8363, the telescope with fine wires or spider's web within the eyepiece, rack and pinion focusing, graduated bubble level, lens hood, vertical adjustment, mounted within an electrum metal cube with faceted corners over the axis, with prismatic mirror for side illumination, raised on twin shaped supports with tangent-screw fine telescope adjusters, sprung clamps, on the signed horizontal plate with level and cross bubble, the enclosed silvered horizontal circle with two telescopic magnifiers numbered I and II, the telescope with two stops with rubber cushions, fine adjustment by tangent screw, on the similarly adjusted three-screw tripod mounting, the legs with foot pads, the tripod mounting with spring-loaded adjuster and hook for plummet suspension, the plummet with accessories located in a separate case, all contained in the original surveyor's carrying case, with embossed maker's label, leather carrying straps and handle -- 17in. (43.2cm.) wide
See Colour Illustration and Details
signed on the horizontal plate Otto Fennel Söhne in Cassel, No. 8363, the telescope with fine wires or spider's web within the eyepiece, rack and pinion focusing, graduated bubble level, lens hood, vertical adjustment, mounted within an electrum metal cube with faceted corners over the axis, with prismatic mirror for side illumination, raised on twin shaped supports with tangent-screw fine telescope adjusters, sprung clamps, on the signed horizontal plate with level and cross bubble, the enclosed silvered horizontal circle with two telescopic magnifiers numbered I and II, the telescope with two stops with rubber cushions, fine adjustment by tangent screw, on the similarly adjusted three-screw tripod mounting, the legs with foot pads, the tripod mounting with spring-loaded adjuster and hook for plummet suspension, the plummet with accessories located in a separate case, all contained in the original surveyor's carrying case, with embossed maker's label, leather carrying straps and handle -- 17in. (43.2cm.) wide
See Colour Illustration and Details