THE 1874 "CONTRA SELLO" ISSUE

First Volcano Issue of 1867 Handstamped in Black
With Circular "CONTRA SELLO / 1874".
Handstamped Applied to Prevent Circulation of Stolen Stamps

Illustrating the two types of handstamped together with errors from the only known 
complete set of 4 values sheets of the Type I handstamped.

Usage of the Type I handstamped is highlighted with the largest recorded usage 
of the 1 real value. The most important cover of El Salvador is also included
in this section, showing the largest recorded usage of the 4 reales. This item is also 
the only recorded registered cover for the issue with the only recorded cover
with the double handstamped error.

The Type II handstamped is highlighted with the largest recorded usage of the 1/2 real 
issue  and the only known "CONTRA SELLO" issue canceled in Panama.