Collection of three items: ink signature, “Francis Bacon,” on a white 5 x 3 slip; a commemorative cover with a cachet honoring International Volunteer Day, signed in black ink by David Hockney; and an ALS, signed, “John Piper,” 5.5 x 4, dated August 27, 1964. In fine condition, with a couple of punch holes and pencil notations to letter. RR Auction COA.
