Sotheby’s auction house is presenting the art collection of the late Ann Schlumberger for sale in a New York auction. The centerpiece of the collection is a hippopotamus-shaped bar designed by François-Xavier Lalanne, the sculptor known for his animal-inspired furniture, according to news.artnet.

The hippopotamus is the first and only copper version created by Lalanne. It features a blend of worn red, brown, and black tones and is expected to exceed $7 million when offered in Sotheby’s auction series.

The artwork also includes a set of nine anemone flowers commissioned by Schlumberger from Claude Lalanne for the grand staircase in her Houston home. Made of gold-plated bronze, Sotheby’s described it as a unique design, with an estimated price ranging between $100,000 and $150,000.

Schlumberger was born in France in 1939 to Pierre Schlumberger, an oil industry executive, and Claire Simon Schub de Hericourt, a French aristocrat. The family moved to the United States in 1940 to escape the German invasion.

Besides her work as an architect, Ann was an arts patron and served on the boards of the Houston Museum of Fine Arts and the Menil Collection, which contributed to her diverse tastes.

Also on offer is Claude Monet’s painting “View of Rouen from Côte Sainte-Catherine” (1892), depicting the silhouette of Rouen Cathedral in the soft dawn light, estimated between $3 and $4 million. Another painting, “Le Havre: Regatta Festival” (1869) by Eugène Boudin, portrays a lively scene of French high society with broken brush strokes, estimated between $700,000 and $1 million.