El Salvador, where the Colon ( named for Christopher Columbus ) is the
currency, had been under the sway of the " Coffee Barons" for many years.
They were of two major families, Quiñonez & Melendez.

So, it is no wonder that in 1919, when these revenues stamps were issued, that
power and the presidency of El Salvador passed from one family to another.

The stamps ( 1, 5, 10, 25 & 50 Centavos and the One Peso - before the official
change of the currency to the Colon ) themselves depict, the coat of arms
of El Salvador ( a independence hat perched on a stick, atop mountains,
all within a triangle surrounded by the national flags ),
with the date 1919 overprinted on the bottom.
These are in mint condition, available in full sheets of 100 stamps.