1. 1850. 6 cuartos black (I-16). Pre-philatelic postmark "4 ms", in blue, Barcelona postage-surcharge. MAGNIFICENT AND EXTREMELY RARE. Cert. GRAUS. (Pre-philatelic letter included for comparison of the mark).
Online Stamp Auction Spain and Colonies #129
Thursday, 19 February 2026 | 15:00
Lot 114
Starting price
500€
Starting price 500€
Illustrative price in other currencies
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$ 596
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£ 434
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CHF 469
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