File:1831 Map of Gloucester, Cape Ann, shewing the roads, harbours, rivers, coves, islands & ledges surrounding that important cape, with directions for entering the harbours, by John Mason, from the Digital Commonwealth - commonwealth cj82k.jpg
![File:1831 Map of Gloucester, Cape Ann, shewing the roads, harbours, rivers, coves, islands & ledges surrounding that important cape, with directions for entering the harbours, by John Mason, from the Digital Commonwealth - commonwealth cj82k.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/b/b4/1831_Map_of_Gloucester%2C_Cape_Ann%2C_shewing_the_roads%2C_harbours%2C_rivers%2C_coves%2C_islands_%26_ledges_surrounding_that_important_cape%2C_with_directions_for_entering_the_harbours%2C_by_John_Mason%2C_from_the_Digital_Commonwealth_-_commonwealth_cj82k.jpg/795px-thumbnail.jpg?20211207124039)
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