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Auction: 16USA - The Frederick R Mayer Collection of Costa Rica
Lot: 28

#1P-4P, 1863 1/2r-1P First Issue plate proofs on India, a spectacularly beautiful complete set of plate proof sheets of 100 each mounted on card, from the unique set of four sheets discovered in an American Bank Note Company archive ledger, fabulously bright and fresh, each well margined, very fine; a showpiece set of proof sheets. Estimate US$ 1,500-1,800

Sold for
$16,000