used 1909-10 watermark sideways, perf. 12½, 2½d. black and dull blue, a top right corner example variety imperforate between stamp and margin at right, neatly cancelled with Port Moresby c.d.s. Very rare with only two sheets - ten examples recorded. S.G. O24 var. Photo

Details
used 1909-10 watermark sideways, perf. 12½, 2½d. black and dull blue, a top right corner example variety imperforate between stamp and margin at right, neatly cancelled with Port Moresby c.d.s. Very rare with only two sheets - ten examples recorded. S.G. O24 var. Photo