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Plan and section of the observing room (hut) used by the Greenwich observers in the 1888 Paris–Greenwich longitude determination

Royal Observatory Greenwich, Observing Hut in Courtyard, plan and section (1888)

Plan and section of the observing room (hut) used by the Greenwich observers in the 1888 Paris - Greenwich longitude determination. Plate I from Telegraphic determinations of longitude made in the years 1888 to 1902 , HMSO (1906)