Alan Griffiths, 
2016, 25 July, Contextualization of Gustave Le Gray 
Study of Trees and Pathways, 1849, Salt print, from a waxed calotype negative, 7 13/16 x 10 3/8 in, J. Paul Getty Museum, The J. Paul Getty Trust (84.XM.637.6) on Luminous-Lint, Screenshot, 
Luminous-Lint, 
LL/68007