Liebig Parasites Of Agriculture S1689 Trade Cards

Liebig Owls S1761 Trade Cards

Liebig Seal Birds S1796 Trade Cards

Liebig Bears S1620 Trade Cards

Liebig Fruit And Their Enemies From The Animal World S931 Trade Cards

Liebig Wells And Fountains S862 Trade Cards

Liebig Rain S1200 Trade Cards

Liebig The Bersaglieri S1663 Trade Cards

Liebig Nero Opera S1169 Trade Cards

Liebig Straights Outside Europe S868 Trade Cards

Liebig Scenes Of Africa S845 Trade Cards

Liebig The Story Of Nala And Damavanti S941 Trade Cards

Liebig Fauna And Flora Of Ethiopia  S1414 Trade Cards

Liebig Remains Of The Roman Empire In Africa S1091 Trade Cards

Liebig Humming Birds S1332 Trade Cards

Liebig Fish Eating Birds S1634 Trade Cards