St. Clair, Thomas Staunton,
"View of the Pass of the Tagus at Villa Velha into the Alemtejo, by the Allied Army, on the 20th May 1811"
(1812).
Prints, Drawings and Watercolors from the Anne S.K. Brown Military Collection.
Brown Digital Repository. Brown University Library.
https://repository.library.brown.edu/studio/item/bdr:242137/