Theme

•  Aeronautics (1)
•  Agriculture (8)
•  Alcohols (2)
•  Banks-Finance (5)
•  Butchers slaughts (1)
•  Chemical fertilizers (1)
•  Chemistry (1)
•  Colonies (15)
•  Electricity (4)
•  Loans (3)
•  Mines : coal (1)
•  Mines : gold (19)
•  Mines and quarries (9)
•  Navigation (8)
•  Paintings, colors (2)
•  Railroads (1)
•  Real estate (3)
•  Rubber (1)
•  Sugar (10)
•  Textiles (1)
•  Trade (4)
•  Wood, forest (4)