Cancelled 1870-73 (c.) imperforate plate proofs of the 1d. rose block of four and 3d. yellow-orange single in near issued colours on surfaced wove paper, each overprinted "CANCELLED" (Type D7); the 1d. block with a couple of surface scuffs. Believed to have been part of a series of reference sheets of all values printed by De La Rue. (from the collection of Dr. Conrad Latto). Photo