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Date : 1855
Published 1855 in Pennsylvania, dated 1850 . Lithograph with original full wash hand colouring. Overall sheet size: 42.8cms x 34.5cms; image size: 399mm x 328mm. Characteristic green decorative border and pastel colouring. Explanation key below title. Provinces differentiated by colour; hachures denoting height.
Thomas, Cowperthwait & Co. were a publishing company based in Philadelphia. They were part of the burgeoning atlas and map publishing in the early to mid-nineteenth century. They published many famous works, including Tanner’s New Universal Atlas. Their maps are notable for the decorative borders and fine, vivid original hand colouring.