Mexico, 1868, 100c black on brown, Tabasco, quarter used as 25c, imperf. Cons 38-69, lower right quarter of stamp on 1869 folded letter to San Juan Bautista, tied by "Huyman/Guillo" straight line handstamp (Schatzkes 1567AA); slight cover aging and a couple small internal holes, still Very Fine, a great fractional postage rarity, one of only two usages known of the 1868 100c quadrisect used on cover; with 1976 MEPSI certificate. Scott No. 64c  Estimate $5,000 - 7,500. $0 (Image)