Piotrowski. At its heyday in 1929, the museum possessed 195 paintings and 28 sculptures: it grandly benefited from the attention of the president of Bydgoszcz Bernard Śliwiński. From 1926 onwards, the activities of the museum were reduced and the staff was reduced. The management board was mainly led by city counselor Tadeusz Janicki and local painter Kazimierz Borucki took over the direction. In 1928, an exhibition of paintings by Bydgoszcz painter Walter Leistikow was set up, in which works by Leon Wyczółkowski, living in nearby village of Gościeradz, were also presented. The arrival of Leon Barciszewski as a new mayor in 1932, brought back a new life to the activity of the institution. In 1933, an exhibition for the 10th anniversary of the museum was organized, gathering souvenirs and objects narrating the history of Bydgoszcz. In 1937, as dictated in his will, Leon Wyczółkowski donated his works to the museum, thus greatly increasing its collection. The donation comprised about 400 paintings, graphics, drawings and sketches of the artist, including the equipment of his lithography studio. The same yeat Krakow artist Konstanty Laszczka donated a collection of sculptures. Both contributions were displayed in July 1937 in the building of the former orphanage at Chodkiewicza street, then used for educational purposes. At the end of August 1939, the collection of the municipal Museum registered 6,803 items: half of which listed in the archeology department; 1900 objects in the art section; 873 items in the numismatics area; 210 in the craft and Bydgoszcz history; 200 in the ethnography department, including African items; 160 in the medalist area; 150 in the militaria section. In addition to the permanent collections, the museum also conducted exhibitions. From 1923 to 1939, about 120 temporary exhibitions were set up and a new permanent exhibition was realized, named as City Gallery. In order to make attractive to the general public the work of local artists, an annual exhibition called the Bydgoszcz Salon, in reference to the Paris Salon, was established in 1936. From 1934 until 1939, the management of the museum was associated with the Artistic and Cultural Council in Bydgoszcz (), whose task was to coordinate and care for artistic and cultural activities in the city. On the eve of the outbreak of World War II, the Bydgoszcz Municipal Museum was an important art center, the seat of many cultural and artistic societies and a meeting place for