| Adolf-Nikolay Erazmovich Boiarski The Observatory Showing Armillary Sphere and Other Astronomical Instruments, Beijing [Russian Scientific-Commercial Expedition to China, 1874-75 - Album] 1874 Albumen print 20.3 x 24.7 cm (oval) National Library of Brazil, Iconography Division (Fundação Biblioteca Nacional. Divisão de Iconografia) Thereza Christina Maria Collection LL/73569
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