The art collection in the Lönnström Home Museum spans a period from the 1860s to the present. The oldest portion consists of 19th century works by international artists from Teresia and Rafael Lönnström’s childhood homes. When the Lönnströms decorated their own home, they purchased mainly traditional Finnish art. The oldest works in the collection are on permanent display in the home museum as part of its interior. The featured artists include Elin Danielson-Gambogi, Pekka Halonen and Hjalmar Munsterhjelm.
The more recent portion of the collection consists of Finnish and international art from the 1970s onwards. Teresia Lönnström began to build the collection at the turn of the 1980s, acquiring work by Finnish women artists in particular, as well as Rauma-based artists.
Since 1987 the foundation has been augmenting the collection with Finnish contemporary art in the spirit of Teresia Lönnström’s will. Purchases made in the 2000s include works by Kaisu Koivisto, Jasmin Anoschkin, Ville Andersson, Jaakko Niemelä and others.
The art collection keeps growing and currently comprises around 350 works.