Lot
2061 
Mexico, (Mazatlan) Copala, bold French Intervention "Sello Negro" strike of circular handstamp (Schatzkes 753A) indicating payment, on 1867 folded letter sheet to Mazatlan; some light cover tone and erosion in address panel, a Very Fine strike, this is the only known Sello Negro known from Copala during the Post French period; signed J.K. Bash. Estimate $300 - 400.
Realized: $270