Feliks Wygrzywalski (1875–1944), painter, graphic designer and illustrator, also worked with costume design, theatre stage design and stained glass windows. Studied at the Munich Academy, as well as in Paris, he also spent several years in Italy and Egypt to finally settle in Lviv in 1908.
The poster advertises a fertilizer, its main ingredient being kainite – a mineral salt exploited in the potassium salt mine in Stebnik, located then in the Eastern Borderlands of Poland (now the Lviv region of Ukraine). Wygrzywalski operates with easy-to-read means of expression: pleasing to the eye multi-coloured folk costumes, a landscape in warm colours. The skilfully represented atmosphere of familiarity and prosperity adds to the visual attractiveness of the advertisement.