unmounted mint Block Larger Than four 1971 watermark sideways Arms $1, an unmounted mint block of twenty (10x2) being the complete top two rows of a sheet, the row 1 stamps showing brown colour only partially printed resulting in part of the background and Chinese characters at left completely omitted; a few faint yellow marks on gum well clear of variety. S.G. 254b var. Yang 229b, $5200