30c Ultramarine & Carmine, Large Die Proof on India (121P1).
On 76 x 120mm card with full die sinkage, showing engraver's pencil signature "Ronaldson"
at bottom, part of card (incl. signature) trimmed, Very Fine, extremely rare and desirable signed by Douglas S. Ronaldson, the engraver of the shield, eagle and lettering on the 30c 1869, with 1998 P.F. certificate
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