Stamps Year 1931

Royal Naval Academy of Livorno - 50th Anniversary (1881-1931) - Trento Class Cruisers.
Herman Cudris Castaņeda
Ed:ES 498-King Alfonso XIII-(Profile Portrait)-Series:Alfonso XIII (1930-Vertical overprint.
Herman Cudris Castaņeda
Woman carrying water 1931, country and people- Arab woman
Jose Roberto Lara
Southwestern Africa - BOGENFELS (Natural Arch-Shaped Rock Formation)
Herman Cudris Castaņeda
Characters.
Marcel Giralt
Planes
Nelida Fernandez Besada
Planes
Nelida Fernandez Besada
C13 - Airplane
Manuel Briones
C4 - Airplane
Manuel Briones
C4 - Airplane
Manuel Briones