The Finnish Glass Museum, Glass manufacturers’ brochures from the 1950s, Riihimäki, 1994, p. 50 Päivi Jantunen, Kaj & Franck: Designs & Impressions, Helsinki, 2011, p. 136
1964 Colored glass. 4 7/8 x 6 1/2 x 4 1/8 in. (12.4 x 16.5 x 10.5 cm) Produced by Nuutajärvi Notsjö, Helsinki, Finland. Underside incised K Franck/Nuutajärvi/Notsjö -64.