18K gold set with moving green tourmaline crystals, width 20 - 70 mm, length ca 43.5 cm, weight 332 g. Signed BW and with Finnish hallmarks, made in 1966. Accompanied by a case from Kruunu-Koru and a handwritten letter from Björn Weckström explaining the construction of the necklace.
Röhsska Konstslöjdsmuseet, Gothenburg, Sweden, 1967