| Ludovico Wolfgang Hart [The Studio of Gustave Le Gray, rue Nubar, Cairo] 1864-1869 Albumen print Galerie Lumière des Roses LL/115429 Gustave Le Gray's workshop unveiled, Lumière des Roses Gallery
(Accessed: 14 November 2021)
(Alan Griffiths, 14 November 2021) The current location of this photograph is requested.
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