This Revolutionary War map was based on the chart Joshua Fisher made of Delaware Bay in 1756. The Fisher map is considered an important map of the bay and river in the eighteenth century. Joshua Fisher's early chart of Delaware Bay from the Sea-Coast to Reedy-Island was published during the French & Indian War, and was immediately suppressed by the Assembly, fearing that its falling into enemy hands would make Philadelphia a target of the French navy. Identifies the ship channels from Cape May and Cape James up the Delaware River past Salem Mass. Wilmington, Newcastle, and Chester to the small town of Philadelphia, Pennsylvania. The accompanying text includes an article updating the British public on the war in the colonies. It shows the bay and beyond to Philadelphia complete with place names and the location of navigation hazards along the waterway. Locates Cape May, Turtle Gut Inlet, Cape James, Egg Island, Salem, and much more. Two distance scales and the direction rose with fleur-de-lis orients north to the right. A large discolouration permeates the majority of the map element.