COVER FIRST DAY OF EMITION GJ HB 105
ARGENTINES BIRDS, PICTURES OF AXEL AMUCHASTEGUI
COVER FIRST DAY OF EMITION GJ HB 134
MAMMALS OF ARGENTINE CENOZOIC – MEGATERIO, CLIPTODONTE, MACRAUQUENIA, TOXODONTE
COVER FIRST DAY OF EMITION GJ HB 138
FELINES – COUGAR, JAGUARS, OCELOT, WILDCAT, MUIÑA
COVER FIRST DAY OF EMITION GJ HB 168
CHRISTMAS, ARTISTIC PICTURES OF ELENA STORNI
COVER FIRST DAY OF EMITION GJ HB 197
150 YEARS OF THE FIRST STAMPS OF BUENOS AIRES, ARGENTINE CONFEDERATION AND CORDOBA
