15c Deep Blue, Large Die Trial Color Proof on India (77TC1). On 148 x 222mm card with full die sinkage, National Bank Note Co. imprint at bottom, India paper toned but proof color is still deep and rich, Very Fine appearance, a very rare die sunk example of this trial color proof, we have not offered another since our 1999 Finkelburg sale, this is the only example located in Power Search that is full size, ex Finkelburg

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