1. 1850. 6 cuartos black. Postmark with the monogram "BS" in Burgos blue. MAGNIFICENT AND RARE. Cert. GRAUS. (Pre-philatelic letter included for mark comparison).
Online Stamp Auction Spain and Colonies #129
Thursday, 19 February 2026 | 15:00
Lot 88
Starting price
275€
Starting price 275€
Illustrative price in other currencies
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$ 328
-
£ 238
-
CHF 258
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