[San Juan de Ulúa
Watercolor on vellum. Upper corners damp marked, with very slight marking of the drawing. Mounted on cloth. Kraus, H.P. Sir Francis Drake, 46 Available also through the Library of Congress web site as a raster image. Gift of Hans P. and Hanni Kraus.
Eraso, Cristóbal De. - Hans and Hanni Kraus Sir Francis Drake Collection (Library of Congress)