SAN SALVADOR
Straight Line "S. SALVADOR" in Black
1800 - 1826

Previously recorded as used up to 1818.

1826 FEBRUARY 22: ADDRESSED TO GUATEMALA

Similar to the above except for small "R" in "SALVADOR".
Boxed-in "S. SALVADOR" in Black 
1835 - 1865

1835 OCTOBER 22: ADDRESSED TO GUATEMALA
Thick Frame Line Measuring 47 mm x 10 mm

ADDRESSED TO GUATEMALA
Variety: Thin Frame Line Measuring 46 mm x 9 mm.
Boxed-in "FRANQUEADO: / EN SAN SALVADOR" in Black
With Notched Frame Line
1807

 ADDRESSED TO GUATEMALA