1. 1787.d.7, 4(10) Reference (shelfmark): 1787.d.7, 4(10) Title: Peking Observatory. Photographer: Thomson, John Scope & Content: Close view of astronomical instruments in the old Jesuit observatory in Beijing. Collection Area: Printed Collections Languages: Not applicable Date Range: 1872 Extent: 1 item
2. 1787.d.7, 4(11) Reference (shelfmark): 1787.d.7, 4(11) Title: Peking Observatory. Photographer: Thomson, John Scope & Content: Arched top. Close view of astronomical instruments in the old Jesuit observatory in Beijing. Collection Area: Printed Collections Languages: Not applicable Date Range: 1872 Extent: 1 item