2.50 Pesos olive green, embossed on heavy white paper,
measuring 152 mm x 89 mm.
Printed by Waterlow  & Sons, Limited, London.

GUATEMALA CITY to GERMANY                         1925, JANAURY 2
With printed corner card, endorsed “Via Puerto Barrios”.
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QUEZALTENANGO to BARCELONA                     1925, MARCH 24
2.50p Emblem envelope with printed corner card sent registered.
1919 3p Emblem and 1924 2.50p Montufar on verso, both tied with dispatch cds and MADRID / 7 ABR 25 arrival postmark. 
Overprinted  in two lines and in two different type size with
“CORREOS NACIONALES / SERVICIO INTERIOR”.

There is no documentary evidence on the overprints and their purpose.
Most likely used for notices such as arrival of money orders and parcel posts from abroad.


GUATEMALA CITY CIRCULATING                        1927, AUGUST 5
“CORREOS NACIONALES” measuring 117 mm x 7 mm.
“SERVICIO INTERIOR” measuring 67 mm x 3mm.