Copper engraving, 37.5 x 49.5 cm, original hand-colour, blank verso. A late issue of Blaeu’s map of Guiana, with full-body colour typical of the later seventeenth-century. Seventeenth and eighteenth century maps modelled on Raleigh’s discoveries typically show the ‘mythical’ Lake Parime, as here, with the equally mythical city of Manoa, or el Dorado, on its shores. Long assumed to be entirely ficticious, geologists have now discovered traces of a great extinct lake in Roraima, Brazil. Slowly draining away, it disappeared before it could be mapped by later explorers, but a substantial body of water may well have existed in Raleigh’s day.