on verso of mount, by unknown hand, along top in black ink on paper label: Interior of the 2nd North Fort after its Surrender on 21st Augt. 1860. / Wherein 2000 Prisoners were taken.; upper left in graphite: 2(1'-11"; bottom right in graphite: 00:6693
(sale, Christie's, South Kensington, 05 May 2000, lot 302, as The Second Opium War China, 1860); Michael and Jane Wilson, Wilson Centre for Photography, London, acquired 2000; gift to NGA, 2012.