The product is an original 1969 Fillmore West concert poster featuring the bands The Who and Santana, curated by the legendary promoter Bill Graham. This iconic piece of music memorabilia captures the essence of the rock and pop genre during that era, showcasing the vibrant and eclectic lineup of performers that the Fillmore West was known for. The poster serves as a valuable piece of entertainment history, encapsulating the bold and innovative spirit of the 1960s music scene.