An antique plan of "Plan of the fortifications of Ciudad Rodrigo explanatory of the sieges of July 1810 & January 1812" by Alexander Keith Johnston. F.R.G.S. published by William Blackwood and Sons in 1848. Ciudad Rodrigo was besieged and captured by the French in 1810 and then recaptured by the allies in 1812. 'The field works refer to the Siege of 1812'.
Approx 20.5cms by 15cms.
