3D scan of beam scales on a wooden base, that were used on a table top. The name of the producer/seller is hardly legible, the location is recognizable as Vienna.

The instrument was used by the former Speleological Institute and ...

3D scan of a hydrometric current meter. The instrument was used for flow velocity measurements in rivers and streams by the Karst and Cave Department (Geology and Palaeontology).

3D scan of a small theodolite. The instrument was used for horizontal and vertical angle calculations by the former Speleological Institute and later by the Karst and Caves Department (Geology and Palaeontology) of the Natural ...

3D scan of a spyglass sold by the Viennese optician Otto Schleiffelder, who had his showroom on Graben in the 1st district (inner city Vienna). It was made around 1900 and gifted by Miss E. Kerner von Marilaun to the Geological ...