Stamps Year 1991

ANTARCTIC TREATY (13)
carlos ródenas ferré
STAMP PRINTER OFFICE.
Herberth Sierra Licona
150TH ANNIVERSARY OF THE UNIVERSITY OF EL SALVADOR
Herberth Sierra Licona
PROTECTION OF SALVADORAN CHILDREN
Herberth Sierra Licona
CHRISTMAS.
Herberth Sierra Licona
MARÍA MOLINER (13)
carlos ródenas ferré
XI Pan American Games Havana/91
carlos ródenas ferré
1202 - Hawk Moth Butterfly
joaquín iturrioz
LAKE ATITLÀN
Herberth Sierra Licona
1320 - Käthe Kollwitz, painter and architect
joaquín iturrioz