1. 1850. 6 cuartos black (I-6). Mixed postmark "11", from Bilbao and Baeza, both in red. MAGNIFICENT PRINTING.
Online Stamp Auction Spain and Colonies #104
Tuesday, 4 November 2025 | 6:00
Lot 193
Starting price130€
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1. 1850. 6 cuartos black (I-6). Mixed postmark "11", from Bilbao and Baeza, both in red. MAGNIFICENT PRINTING.