"Ultima15" set of 2 brutalist ashtrays, cast aluminum, ca 1970

Set of 2 brutalist "Ultima15" ashtrays from the 70s. Design L JUNGBERG and BACKSTRUM & BALLEGEER. This iconic model features a cubic cast aluminum structure with a lid adorned with a network of circular cavities. The model is documented as having been produced by Diverse Ting (Malmö, Sweden), with some sources suggesting production in Denmark. Edition information may vary and may require verification. Dimensions: Largest: (5.5 X 15 X 15 cm). Smallest: (7 X 7 X 7cm). Ultima 15 ashtray, designed by Holger Bäckström (1939–1997) and Bo Ljungberg (1939–2007), the Swedish duo known as Beck & Jung. They met at the Gothenburg School of Art and together founded the duo Beck & Jung, active mainly in the 1960s–1980s, combining design, graphics, and optical art. This iconic model is characterized by a cubic structure whose lid is decorated with a network of circular cavities. The model is documented as having been produced by Diverse Ting (Malmö, Sweden), with some sources suggesting production in Denmark. Edition information may vary and may require verification. The smaller model is marked Ballégeer, probably produced in Belgium in the 1970s. It is smaller in size and has the same geometric feel with a surface punctuated by circular cavities. The word Ballégeer appears on the reverse, but little documentation is available on the manufacturer, leaving this point to be confirmed.