The Cozio Carteggio

The Cozio Carteggio takes its name from Count Cozio’s notebooks, which form the first historical record of fine instruments and their makers. Each week, the Carteggio publishes features about the string world, from expert commentary on historic instruments and bows, to interviews with musicians and analysis of the string market. Contributors will include Carlo Chiesa, John Dilworth, Philip J. Kass and many other experts.

New features are published every Tuesday. To have these delivered straight to your inbox, sign up for our newsletter.

Latest Feature

Bonnard brand stamps

Rediscovering François Bonnard

When a bow stamped 'Bonnard' turned up recently, it led to the discovery of a forgotten Mirecourt maker and several of his fine bows

By Pierre Guillaume

François Bonnard was one of the many talented French bow makers working in the 19th century, yet until recently his work had gone unnoticed. Last summer, an antique dealer from Paris called me and said: ‘Pierre, I’ve got a bow stamped “Bonnard”...

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