Scale: circa 1:8,000,000. Printed chart of the South Atlantic, with currents shown in blue. Blue backed chart. Manuscript track, December 1906 to March 1907 Seven insets and six views. Insets: 1. St Paul's Rocks circa 1:25,000 (bar); 2. Gough Isle circa 1:30,000 (bar); 3. Martin Vaz Islets circa 1:120,000 (bar); 4. Trinidad Island circa 1:70,000 (bar); 5. The Rocas circa 1:65,000 (bar); 6. Ascension circa 1:97,000 (bar); 7. St Helena circa 1:97,000 (bar).