Collect this beautiful Liebig chromo series no. 1666 from 1957, titled 'The Cats'. This set features six chromolithographs depicting various cat breeds and their behaviors. The cards show detailed images of cats such as the Siamese, Persian, and European Shorthair. Each card is richly detailed, showcasing the beauty and quirks of these beloved pets, accompanied by the iconic Liebig pot. A valuable addition for any lover of cats and historical collectible cards.