© National Portrait Gallery, London
'Interiors of Buckingham Palace and Windsor Castle and Portraits of the Royal Family of Great Britain'
by Ashford Brothers & Co, after John Jabez Edwin Mayall, and John & Charles Watkins, and Georg Emil Hansen
albumen carte-de-visite, 1860s
3 3/8 in. x 2 1/4 in. (87 mm x 56 mm) image size