Proof ½d./3/- design master, in black on surfaced wove paper (50x55mm.) showing an additional engraving of the corner lines towards lower left corner, dated "*7 MAY 1909". Photo

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Proof ½d./3/- design master, in black on surfaced wove paper (50x55mm.) showing an additional engraving of the corner lines towards lower left corner, dated "*7 MAY 1909". Photo