The sub-collection of paintings (signature Ob, 1345 items as of 12/2022) contains works from the late 17th century to the present. It includes works by both folk and professional artists. The oldest item is a coloured painting on parchment with a religious theme dating from 1673, from the collection of Otakar Hruška. The sub-collection of paintings contains several larger and more important items. Overlapping with the ethnographic collection is a set of ninety coloured drawings by J. V. Scheybal, more than sixty folk paintings on glass and a set of more than 150 paintings on tin from the Schöffel factory in Rychnov nad Nisou. Other larger groups are paintings and prints by Czech and German artists and graphic artists (30 items) from the 1920s and 1930s, which were originally loaned to the museum picture room in 1940 by the then Ministry of Education and National Awareness (Ministerstvo školství a národní osvěty) representing artists born around the turn of the 19th and 20th centuries – Baruch, Kaláb, Moravec, Podešva, Šimák, Silovský, Toyen, etc). Graphic art is represented, for example, by 13 graphic prints purchased by the Museum Association for the Czech Graphic Art Exhibition held in Železný Brod in 1943. This collection includes important graphic artists of the period of the First Republic (Jiřincová, Bouda, Vik, Macková, Ranný, Kobliha, etc). Another body of work by Czech artists was transferred to the Museum of Železný Brod from the Regional Gallery in Liberec in the early 1960s (Válová, Solovjevová, Volf, Born, A. Beran, Urbánek, Kazdová, Fišárek, Pokorný, Hýsek, etc). The sub-collection of paintings also includes regional and Železný Brod artists Rada, Skrbek, Kaván, Metelák, Tockstein, Přenosil, Žák, Dostrašil, Hudský, Žídek and Maischeider.
There are also numerous anonymous folk paintings, mostly with religious motifs.
A set of 120 stencils and graphic sheets from the estate of the painter František Maischeider from Železný Brod is a particular curiosity.