Lot 90038 – 1863 (19.6) Mourning envelope bearing Italy 1863 lithographed 15c. blue strip of four

1863 (19.6) Mourning envelope bearing Italy 1863 lithographed 15c. blue strip of four, left stamp vertical fold at border, tied by blue boxed “PIROSCAFI / POSTALI / ITALIANI” cancellations, blue “ALESSANDRIA D’EGITTO/POSTE ITALIANE/GUI/63” c.d.s. Alongside, addressed to Florence and redirected to Bagni Montecatini with several transit marks, address partly excised, an extremely rare use of the 1863 lithographed 15c. blue on cover; cert. Enzo Diena (1990); ex C. Cotta.