3c Lewis & Clark Expedition, Large Die Proof on Wove (1063P1a). Die sunk on three-hole punched 201 x 151mm card with full die sinkage, deep rich color, back with Bureau handstamp "Engraver's Stock Proof. Authorized by." with control no., "C" security punch taped in place and "Brooks" in pencil (vignette engraver), Very Fine and extremely rare, believed to be the only Large Die Proof of this issue in collector hands, ex Livingston, with 2008 P.F. certificate

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