Lot
402 
Mexico, 1861, ½r Black on Buff, Horizontal Strip of 4, San Luis Potosi, clear to huge margins, tied by monogram wreath cancels (Schatzkes 1454) on folded letter sheet to Mexico City, San Luis Potosi cds and receiving backstamp, Very Fine, ex Mazepa. Scott No. 6 Estimate $250 - 350.