In 2019, a 15th-century print entitled The Tower of Wisdom kept by the Kórnik Library in Poland was subjected to scientific examination. The main purpose of the examination of the hand-coloured image was the identification of the technique of the application of the text and the illustrations. The conducted examination proved a thesis that it is an example of xylographic print. Moreover, the elemental composition of the paint layer was analysed, revealing no colours which were not used in the period of the object’s origin.