The adhesive
issues is confined to the First Volcano Issue of 1867
and the "Contra
Sello" Issue of 1874.
The collection
on Postal Cards start with the 1879 Formula Cards up to the 1899 Ceres
Issue.
I sincerely
hope you will enjoy viewing the stamps and covers of El Salvador...
perhaps with
the same intensity of pleasure that I obtained in collecting them.