Star Finder ("A Movable Planisphere of the Heavens at Every Minute")

Circular, hand-colored, printed planisphere on flat board with overlaid template. Says: "A MOVABLE PLANISPHERE OF THE HEAVENS AT EVERY MINUTE/BY/HENRY WHITALL. 512 Arch St., Philadelphia, Pa."; and "Entered according to Act of COngress in the Year 1862 by HENRY WHITALL in the Clerk's Office of the District Court for the Eastern District of Pennsylvania' by "Entered, according to Act of Congress, in the year 1871 by HENRY WHITALL, in the office of the Librarian of Congress, at Washington, D.C."