Authentic, original woodcut engraving that was published on the front page of the October 18, 1862 issue of Harper's Weekly. Caption: Major General Franz Sigel, Commanding Twelfth Corps, Army of the Potomac. From a Drawing by Mr. Emil Sigel. 11 x 16. Harper's Weekly, date and their ornate illustrated masthead at the top. Thin original mailing label at lower left edge not affecting the subject.