Le ricin / Compagnie Liebig.

One of a series of cards (sent in sets of 6 in exchange for coupons from jars of Liebig's 'Véritable extrait de Viande Liebig' or Extractum Carnis Liebig). This one describes the castor oil plant (ricinus communis), its cultivation and how it is processed to produce ricin. The colour image on the front shows its flowers and leaves and peasants pressing its seeds to produce a medicinal oil. Liebig cards appeared in various languages. This set also advertises Oxo beef tea.