A 47-string double-action concert harp by Érard, Louis XV style, Paris, c. 1912-1915, owned by Anna Clark. From the apartments of Huguette Clark at 907 Ffith Avenue, New York. Estimated value $3,000 to $5,000.

A violin by Antonio Stradivari, Cremona, Italy, c. 1731, known as the Kreutzer. From the apartments of Huguette Clark at 907 Ffith Avenue, New York. Estimated value $7.5 million to $10 million.

Front of a violin by Antonio Stradivari, known as La Pucelle, or "The Virgin," previously owned by Huguette Clark and sold for $6 million in the 1990s. With a frontpiece of Joan of Arc.

Back of a violin by Antonio Stradivari, known as La Pucelle, or "The Virgin," previously owned by Huguette Clark and sold for $6 million in the 1990s. With a frontpiece of Joan of Arc.

Huguette Clark with her violin in Paris.

Huguette Clark was trained on the violin, and at one point owned three instruments by Stradivari.

Huguette with one of her violins.