(CARTOGRAPHY) BLANCHARD, RUFUS Blanchard's guide map of Illinois. Chicago: Rufus Blanchard, 1872.Folding pocket map (56 x 42 cm., sheet), folds into publisher's lettered stiff paper wrappers. Sixteen pages of publisher's catalogue and ads mounted to inside wrapper. With full period hand-coloring.Following the 1871 Fire, Blanchard relocated his shop from Lake Street, in the burnt district, to nearby Clark Street, where he began to publish a new series of pocket maps, "in flexible cases with price reduced."