Private collection, Helsinki
Marianne Aav, Rosa Barovier Mentasti and Gordon Bowyer, et al., Tapio Wirkkala: eye, hand and thought, exh. cat., Museum of Art and Design, Helsinki, 2000, p. 363
Heikki Matiskainen, ed., Tapio Wirkkala: A Poet in Glass and Silver, exh. cat., Finnish Glass Museum, Riihimäki, 2013, pp. 216, 221, 362