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The Cozio Archive

Welcome to Cozio, the world’s largest reference resource for buyers, sellers and connoisseurs of fine stringed instruments and bows.

Founded in 2003 as a public registry of iconography, provenance and pricing information for historical stringed instruments, Cozio encompasses over 30,000 individual instruments and bows by over 2,500 makers. It is also the most comprehensive online source for maker biographies and provenance information, and contains over 50,000 historical auction prices.

Although most of Cozio is available to the public by subscription, it also contains photographs, documents and records of instruments and bows that are accessible only by request. If you would like information about any item that is not publicly available, please contact us.

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Latest Feature

Johann Knoop

Baron Knoop

He was one of the great collectors of fine stringed instruments and many famous violins now bear his name – but who was Baron Johann Knoop and what made him sell his collection in the early 20th century?

By Harriet Grace

Nearly a hundred years ago, on May 9, 1918, my great-grandfather, Baron Johann Ludwig Knoop, died at South Park, his large house in Wadhurst near Tunbridge Wells, aged 71. Virtually unknown, he had owned possibly the world’s finest collection of stringed instruments, including the ‘Lady Blunt’ and ‘Alard’ Stradivari violins, and at one point had […]

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