Mexico 1856, 4r red, half used as 2r, Morelia. Left half of vertical bisect, tied by Angamacutiro straight line postmark (Schatzkes 911) on folded letter sheet to Morelia; light cover toning and file fold affecting stamp, Fine, a very rare and possibly unique bisect usage from the small town of Angamacutiro; with 2008 MEPSI certificate. Scott No. 4a  Estimate $500 - 750. $0 (Image)