'Astronomical Observatory of the Collegio Romano', Rome, 1855-1878.
© Science Museum / Science & Society Picture Library
'Oservatorio Astronomico dell' Archiginnasio Romano sul Campidoglio, veduta 2a (view 2a)'. Engraving showing a telescope in the interior of the observatory with the roof slightly open and a view of Rome, Italy, visible beyond. A gentleman and a priest are in discusion beside the telescope with ratchet revolving apparatus.