Plan Of Plettenberg Bay, Called St. Francisco By Manoel De Mesquita Perestrello. [Scale of ] Nautic Miles [approximately 1:180,000]. A. Dalrymple, 24 December 1781.
Chart Of The Coasts Of Suffalo And Moçambique With The Island Madagascar. John Van Keulen. [Scale of latitude approximately 1:5,500,000]. A. Dalrymple, 20 May 1791.