First edition on current paper. Small gaps on the margins of the sheets that was poorly cut at the end of the volume. Binding in the burgundy velvet full velvet, smooth back, piece of morocco burgundy title, guards and contreplats of gold paper, covers and back preserved. Signed autograph of René Crevel to the princess Lucien Murat: "... because the clavevin Diderot played a music to which we have never been insensitive in the Russia of the Great Catherine."