Scale: circa 1:2,000,000 (lat). Blue-backed chart with 7 insets Insets: 1. Mouth of the River Gironde circa 1:150,000(bar); 2. Entrance of the River Tagus and the Harbour of Lisbon circa 1:125,000 (bar); 3. The Rivers Odiel and Tinto 3 to Huelva &c circa 1:70,000 (bar); 4a. Port of San Martin de la Arena to Suances circa 1:18,000(bar); 4b Continuation to Requejada circa 1:35,000 (bar); 5. Entrance of the River Douro circa 1:45,000(bar); 6. Setubal or St Ubes circa 1:85,000 (bar); 7. Entrance of the River Guadalquiver (Port of Seville) circa 1:70,000 (bar)