Proof 1981, World Tourism, the four low values and miniature sheet, two of each, one a set of working proofs on one piece of paper affixed to Bradbury, Wilkinson card, the other a set of imperforate proofs affixed to stamped and annotated Bradbury, Wilkinson card, also a set of working proofs on folded gummed paper; the 160f. stamp was not proofed separately as its design was incorporated in the miniature sheet; also artwork for the lettering and denominations