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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

Mahler Strad viola back

Stradivari’s violas, Part I

Why did the Stradivari workshop produce so few violas? The history of the instrument provides some clues

By John Dilworth

The history of Stradivari violas begins with an enigma. The earliest known example, the ‘Gustav Mahler’ of 1672, is a bit of an oddball. Perhaps the most unexpected of Stradivaris, it almost merits the description ‘ungainly’ within the company of all his other work.