Harbor Chart Unalaska Island Aleutian Islands c. 1785 Bowen engraved surveySketch of the Harbor of Samaganooda on the Island Oonalaska. (North America, Alaska, Aleutian Islands, Unalaska Island, Harbor Chart, Coastal Survey). Issued 1785, London by Alexander Hogg. Engraved by Thomas Bowen. Late 18th century engraved coastal survey. Nice looking example, pleasing age patina, any minor age flaws easy to overlook or forgive. Sheet measures c. 9 1 2" H x 14 1 2" W. Engraved area measures c. 8 3 4" H x 13 1 2" W. Cartographic