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 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 ...