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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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del Gesu 1728 von Vecsey 900w

Guarneri ‘del Gesù’ Part I (1698–1731)

Although little is known about the early career of Giuseppe Guarneri before he became 'del Gesù', his youthful hand can be seen in the late works of his father and in a rare violin bearing his 'Andrea Nepos' label

By John Dilworth and Carlo Chiesa

Guarneri ‘del Gesù’ has long been seen as the most enigmatic and least understood of the great Cremonese masters. Amati, Stradivari and even Stainer achieved celebrity in their own times. Much information about them was retained in the general record, and the gradual reclamation of their lives and their work has been a consistent building upon available materials. With Giuseppe Guarneri 'del Gesù', the process has been complex and, in the past, highly speculative.