Scale ca. 1:100,000. Facsimile. Title in margin: Plan of attack on Fort Mifflin, 1777. From the original in possession of the Franklin Institute, Philadelphia. Insets: A plan of Fort Mifflin on Mud Island with More
Scale ca. 1:33,200. Hand colored. Shows soundings and disposition of ships, etc. Includes "A sketch of Fort Island" and "Profile and plan of the sunk frames or chevaux de frise which formed the stackadoes in th More
Scale ca. 1:32,400. Title from the author's The course of Delaware River ... 1778. Manuscript, pen-and-ink (black and red) and watercolor. Shows soundings, disposition of ships, etc. Names "Fort Mifflin" and "F More
Scale ca. 1:30,000. Manuscript, pen-and-ink and watercolor. Oriented with north toward the upper left. Depths shown by soundings. LC Maps of North America, 1750-1789, 1366 Available also through the Library of More