Lot
2062 
Mexico, (Mazatlan) Cosala, sello negro wreathed cancel (Schatzkes 756) on 1864 folded letter sheet to Mazatlan, F.-V.F., this is my only known Sello Negro from Cosala. Estimate $400 - 600.
Sale 75: The Sescal Sale
State and Provincial Postal Markings
Lot 2062
Mexico, (Mazatlan) Cosala, sello negro wreathed cancel (Schatzkes 756) on 1864 folded letter sheet to Mazatlan, F.-V.F., this is my only known Sello Negro from Cosala.Estimate $400 - 600.