This exceptional Georg Jensen brooch showcases Vivianna Torun Bulow-Hultén's iconic Mobius design in sterling silver. Measuring 68.50mm x 58.84mm, this substantial piece features the designer's signature sculptural aesthetic with its elegant twisted form. Signed and authenticated, it weighs 33.70 dwt and secures with a reliable locking straight pin mechanism. As a retired size no longer produced, this vintage estate piece represents a rare find for collectors of modernist jewelry and Georg Jensen's celebrated design heritage.