Lot
446 
Mexico, 1861, Second Issue, 4r black on yellow, diagonal bisect, San Luis Potosi, upper left portion of stamp tied by San Luis Potosi oval monogram handstamp (Schatzkes 1454) on 1862 folded letter to Guanajuato, Very Fine; signed A. Diena. Scott No. 9a Estimate $250 - 350.
Realized: $400