1912-24 Watermark Royal Cypher 7d. olive, S.G.N27(1-4),

the set of four shades in matched horizontal marginal Cylinder blocks from the lower left corner of the sheet; comprising 7d. olive, Control 'L 18', Imperforate margin; 7d. olive-grey, Control 'C. 13', Imperforate margin; 7d. bronze-green, Control 'G 15', Perforated margin and 7d. sage-green, Control 'J 17', Imperforate margin; some light gum and other creases, each block mounted, though many stamps are unmounted.