Stamps Year 1961

Gotthold Ephraim Lessing
Luis Ballester
Elisabeth
Luis Ballester
Albrecht Durer
Luis Ballester
Droste-Hölshoff, Annette Freiin von
Luis Ballester
Bach, Johann Sebastian
Luis Ballester
Albertus Magnus
Luis Ballester
GEARWHEEL
Herberth Sierra Licona
Explorers and colonizers of America (Ñuflo de Chaves).
Nemesio Ramirez Lemos
Explorers and colonizers of America (Blas de Lezo).
Nemesio Ramirez Lemos
75th Anniversary of the Colombian Engineering Society 1961
Herman Cudris Castañeda