Hundreds of people queued in Hong Kong on Tuesday to view a Vincent van Gogh painting that has not been publicly exhibited in more than six decades, ahead of a Sotheby's auction in New York where it is expected to fetch about $180 million.

The November 18 auction will test the strength of the high-end art market, where collectors continue to compete for scarce trophy works, undeterred by broader economic uncertainty. Painted in May 1890, "Châtaigniers en fleurs," or "Chestnut Trees in Blossom," is one of the most important works from the Dutch artist's final days in the French village of Auvers-sur-Oise, where he died about two months later at age 37.

The painting is poised to set a new auction record for a Van Gogh work, said Scott Niichel of Sotheby's modern and contemporary art department in New York. "This is a moment of extraordinary optimism, frenetic energy, enthusiasm, passion, and colour in the artist's body of work," he said.

Paintings from Van Gogh's final Auvers-sur-Oise period, just after his release from a psychiatric asylum in Saint-Remy-de-Provence, rarely come to market, and the auction will draw the attention of collectors, museums, and investors. "I'd never heard of this painting before, so I wanted to see it with my own eyes," said Li Shanshan, a 50-year-old art lover who travelled about 2-1/2 hours from the southern city of Shenzhen to view the artwork.

The painting, which depicts a massive blossoming chestnut tree with a flowering canopy that dominates the composition, will be sold as part of a collection of 12 long-unseen works, including items by Paul Cezanne and Claude Monet. Five unveiled at Sotheby's in London in late September included Cezanne's "Arlequin" and Monet's "Le Jardin des Tuileries."

After Van Gogh's death in July 1890, "Châtaigniers en fleurs" was passed to his brother Theo, and then to the latter's widow Johanna van Gogh-Bonger and their son Vincent Willem. Subsequently, it was owned by German publisher Samuel Fischer, founder of S.

Fischer Verlag, before entering the collection of George "Buddy" DeSylva, the American songwriter, film producer, and co-founder of Capitol Records. The exhibition in Hong Kong serves as a rare opportunity for Asian collectors to engage with Western masterpieces before they are moved to the United States for the final bidding process.