Trefl Playing Card Company

The company was founded in 1926 as the Krakowska Fabryka Kart (Cracow Playing Card Factory).

It closed during the war, but re-emerged in 1947 as the state-run Krakowskie Zakłady Wyrobów Papierowych (Cracow Factory for Paper Articles) or KZWP.

[3] Its card designers included: Franciszek Bunsch, Krystyna Bunsch-Gruchalska, Anna Gaber, Maria Orłowska-Gabryś and Professors of the Academy of Fine Arts, Jan Szaucenbach and Andrzej Mleczko.

The company is the oldest Polish publisher and producer of adult and children's playing cards and board games.

Fabryka Kart Trefl-Kraków is also a publisher of games for children from the Zu & Berry and Muduko series.