Preliminary Sketch Map Showing the Positions of Davis’ Shoal and Other Dangers, circa 1853 Consign Now DeptFine Arts, Nantucket ArtSize18 in. x 19.75 in. Framed 26.75 in. x 28 in. Preliminary Sketch Map Showing the Positions of Davis’ Shoal and Other Dangers Recently Discovered by the Coast Survey, 1853, A.D. Bache Superintendent, in burlwood frame, ecru silk mat and gilt liner 18 in. x 19.75 in. Framed 26.75 in. x 28 in. Please note that this auction has ended. Click here for an overview of this auction.