Paris Observatory — Grand Equatorial Curved — ND Phil.

Description

View of the Paris Observatory with the large curved equatorial telescope in central position, flanked by a stone tower and a spiral access ramp. In the foreground, an observer stands on the telescope's balcony. In the background, another circular structure is visible. The back is blank, except for a handwritten inscription 'Astrolabe' and a date '1913' at the bottom left.