used 1949 Surcharges on 1948-50 issue, 3p. on 9p. ultramarine with characters 20mm. long, vertical marginal pair from the foot of the sheet, variety imperforate between and between stamp and margin, neatly cancelled with c.d.s.; small thin, otherwise fine. Rare. S.G. 124ab, £1,100. Photo

细节
used 1949 Surcharges on 1948-50 issue, 3p. on 9p. ultramarine with characters 20mm. long, vertical marginal pair from the foot of the sheet, variety imperforate between and between stamp and margin, neatly cancelled with c.d.s.; small thin, otherwise fine. Rare. S.G. 124ab, £1,100. Photo