Stamps Category Economy

Machine de Marly-Machine, Hydraulic Pump-Water Exhibition in Liege-1939.French Section.
Herman Cudris Castañeda
Grimsel-dam - Hydroelectric Power Plant
Herman Cudris Castañeda
FACTORY
carlos ródenas ferré
PAPER PULP
carlos ródenas ferré
INDUSTRY
carlos ródenas ferré
Tobacco-Tobacco Leaf-Tobacco Trade Congress.
Herman Cudris Castañeda
THE ANNUAL MECHANIZED PLAN
carlos ródenas ferré
THE ANNUAL TEXTILE MACHINING PLAN
carlos ródenas ferré
THE ANNUAL AGRICULTURAL MECHANIZING PLAN
carlos ródenas ferré
Japan-change
Miguel Angel Sancho