An Allegory in Grey and a Dutch Clue. A Painting Attributed to Franciszek Smuglewicz from the Collection of the National Museum in Warsaw. Rocznik MNW [Internet]. 2026 Feb. 27 [cited 2026 Feb. 28];(14(50):196-21. Available from: https://rocznik.mnw.art.pl/ojs/index.php/rm/article/view/204