Auction 333-341 Europe & Overseas - Day 6

1850: Die Proof 6 cs. black, imperforate, printed on white wove unwatermarked paper, the only Proof example of the lithographic design made by Bartolomé Tomás Coromina, crisp detailed printing presenting fine detail of the Isabella II engraving, touching lower left otherwise four margins, small corner fold south east, very fine appearance, beautiful example, a unique piece. Cert. F Graus (2011).
Provenance: Manuel Gálvez.