on verso of mount, by unknown hand, along top in black ink on paper label: Tangkoo Fort. after its Capture. showing the French and English entrance. / Aug-10th-1860. ; upper left in graphite: 2(1'-10"; 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.