Stamps Year 1991

1030 - Pied Harrier
Manuel Briones
676
javier avila
3426 - Marine mammal, odobenus rosmarus
joaquín iturrioz
3424 - Marine mammal, phogophoca graenlandica
joaquín iturrioz
3427 - Marine mammal, tursiops truncatus
joaquín iturrioz
3428 - Marine mammal, monachus monachus
joaquín iturrioz
715
javier avila
Sächsische Staatsoper
Jorge Gomez Rosas
123 - 30th Anniversary of the Antarctic Treaty
joaquín iturrioz
500th discovery of
David Merino Gòmez