Proof 1988 Arts (22nd Series) "Field Workers carrying Sacks" by Martin Benka, 2k. prooks (5) comprising background in different colours (3), principal design in black, and multicoloured completed version, each on glazed card (62x82mm. approx.); also 1991 Martin Benka 2k. proof in black on white gummed paper (65x80mm.). (6 items)