Complex sentence: The cover image, showing a burned-out gold Polaroid of the Washington Monument, was found by Cohen in the street, the inner sleeve was a piece a friend of the band found tacked to a light post in Chicago.
Split into simpler sentences: The cover image, showing a burned-out gold Polaroid of the Washington Monument, was found by Cohen in the street. The inner sleeve was a piece a friend of the band found tacked to a light post in Chicago.