Single sheet, coloured manuscript drawn in ink and wash on tracing paper. Scale [circa 1:750,000 (lat)]. The chart is graduated for latitude and longitude with Ferro Island as the prime meridian. The Straits of Le Maire arre shown in an inset, at the same scale. This chart appears to be a compilation of all the navigational information available about the area prior to Fitzroy's survey of 1835. It was a loose insert in a Spanish atlas of the West Indies and South America.