I got this off Ebay a few years ago; it's an original print advertising Muddy Waters' comeback album Hard Again from 1977.
This album was the first album by Waters not recorded or released on Chess Records, where he worked there from the early '50s till 1976, until the label was sold. Johnny Winter was an essential catalyst for getting Muddy to record with him at Blue Sky Records. His final 3 albums (including this one) were released on that label.
This album features Muddy's longest tenured band with special guests: Johnny Winter and Bob Margolin on guitar, guest blues legend James Cotton on harp (who was in Muddy's band in the '50s), Pinetop Perkins on piano, Charles Calmese on bass, and Willie "Big Eyes" Smith on drums. A simply awesome lineup.
It's got several Muddy classics such as Mannish Boy, Can't be Satisfied, and new originals such as Bus Driver.
My favorite has toq be "The Blues Had a Baby and they Named it Rock n' Roll", so enjoy this great electrifying Chicago blues track: