The 1883 Secretary of War Chart depicting the Mississippi River - Chesley Island & First Island is an antique navigational chart printed by the Government Printing Office. This photolithograph map, made on thin paper and measuring approximately 9" x 23" when folded as issued, was officially authorized by the Secretary of War for Congress. It offers valuable historical insights into maritime navigation along the Mississippi River during the late 19th century, making it a unique and sought-after piece for collectors and history enthusiasts.