Scale: 1:550,000 bar. Two copies. Chart of the English Channel, with the north east Atlantic. With five insets. Rhumb line grid. Variation. Notes on variation, depths and tides. Advertisement for Senex's globes and charts sold at Mrs Senex's. Coordinates given. Blue back Insets: The River Thames from the buoy of the Nore to London Bridge 1:130,000 bar; [Falmouth] 1:110,000; [Plymouth Sound] 1:80,000; The islands of Scilly in latitude 49 47 1:75,000; [Portsmouth and the Isle of Wight] 1:250,000