'GUERNSEY. AND ITS INDEPENDENT ISLES.' by Creighton / Walker / Lewis c.1840
An interesting 19th Century map of Guernsey and Sark -- with an inset of Alderney -- which was drawn and engraved by R. Creighton and J. & C. Walker, respectively, and published in Samuel Lewis's English Topographical Dictionary (London: S. Lewis, 1840-1849).