Proof 1981 World Food day set of three imperforate proofs on Bradbury, Wilkinson card, "as submitted 13/5/81", "1st Proofing" and "Not Approved", together with nine working die proofs (three of each value) of thee unaccepted designs on gummed paper; also two sets of three imperforate proofs on Bradbury, Wilkinson cards (2), both endorsed "Approved", together with fifteen working die proofs (five of each value) on gummed paper; a very good lot