Explore ancient medical beliefs with The Theory of the Four Humours Wall Plaque by Tina Tarrant. Crafted from resin and measuring 20 x 20 cm, this decorative piece explains the concept of the four humours: choler, blood, phlegm, and black bile. Perfect for history lovers and educators, this plaque is a fascinating addition to any wall, illustrating the balance of humours believed to maintain health in ancient times.