Cross in watermark on third stamp in top row; fine unmounted mint. S.G. 39 " /> unmounted mint Block Larger Than four 1907 (May-June) small "Papua", watermark vertical, thin paper, 1d. complete sheet from vignette Plate 2 and showing <I>Cross</I> in watermark on third stamp in top row; fine unmounted mint. S.G. 39 | Christie's