https://www.liveauctioneers.com/price-result/robert-andrew-parker-american-1927-2023-untitled/
Robert Andrew Parker, American 1927 2023, Untitled
Robert Andrew Parker American, 1927-2023 Untitled c. 1968 color lithograph 26-1/2 x 20 inches (sheet) signed and number
robert andrew parkeramericanuntitled