"Jernskulptur"
Signed with monogram RJ 135. Iron. Executed 1951. Height 33 cm, width 20 cm.
Galerie Birch, Copenhagen.
Nordjyllands Kunstmuseum, Aalborg, Denmark, 1972, no. 28, illustrated in the catalogue p. 77.
Statens Museum for Kunst, Copenhagen, Denmark, 2001-02.
Museum Würth, Germany, "Robert Jacobsen zum 100", 2012.
Kunsten, Aalborg, Denmark, 2012-13.