Delia's papers contain a folder containing two pages of notes for a piece called Bring Back dated the 9th April 1968.
DD100117: Cover of papers for "BRING BACK"
DD100159: Delia's handwritten notes: "BRING BACK! 9.4.68"
DD100221: Delia's handwritten notes: "1) 20/11x15=300/11=27.27" each"