Mexico, 1861, 8r black on red brown, quarter used as 2r, Monterrey. Bottom right quadrant stamp tied by Monterrey boxed date stamp on 1861 folded letter to Matamoros; light cover edge wear at top, otherwise Very Fine, few bisect usages exist from this district; with 2007 MEPSI certificate. Scott No. 11b  Estimate $300 - 400. $0 (Image)

Mexico, 1861, 8r black on red brown, quarter used as 2r, Durango. Bottom left quadrant of stamp showing district overprint, tied by neat "Durango, Octubre 29" boxed date stamp on 1861 docketed folded letter sheet, Very Fine and choice. Scott No. 11b  Estimate $200 - 250. $0 (Image)