First edition with number line to one Very gently read, unclipped and not remaindered. Interior is crisp and clean. Clean black ink titles to spine and front board. Corners are sharp and square. Dustjacket is very lightly bumped to extremities with minor shelfwear to show. The hot dry summer of 1874 marked the final assault of the open western frontier with the mapping of the “Medicine Line” and the creation of the world’s longest undefended border.