Meridian hall with tools and chronograph in the Astronomical-meteorological observatory

http://lod.ehri-project-test.eu/instantiations/ua-006557-photos-10_pict-3141-eng-3141_eng an entity of type: Instantiation

Meridian hall with tools and chronograph in the Astronomical-meteorological observatory 
Meridian hall with tools and chronograph in the Astronomical-meteorological observatory 

data from the linked data cloud