Cyanotype (blueprint) map with some details heightened in original coloured crayon (Very Good, old folds and minor creasing, old tack marks to corners), 54 x 54 cm (21.25 x 21.25 inches).

  The only known example of a fascinating cyanotype (blueprint) plan of Sekondi, capturing the Gold Coast’s (Ghana) main commercial port during the Edwardian boom period of economic and infrastructure…