WILLOUGHBY GORDON PAPERS. Vol. XLVII C. 'Plan of the Island of Perexil and the Bay it is situated in'. Scale of 500 feet to one inch [1:6000]. 295 x 570mm.
WILLOUGHBY GORDON PAPERS. Vol. XLVII D. 'Plan of the Island of Perexil'. Scale of 100 feet to one inch [1:1200]. Proposed buildings and batteries shown in yellow. 400 x 625mm.