The Greenberg Van Doren Gallery opened its exhibit of 28 paintings and drawings by Richard Diebenkorn last week, and the reception was a trip down memory lane for some.

“He was always looking, always drawing,” the painter’s daughter, Gretchen Diebenkorn Grant, said of her father. “I think of him a lot when I look at things.”

Nearby, a former auction-house executive, who lived in California when Diebenkorn (1922-93) was active, chimed in with recollections of having dinner with the artist.

The posthumous exhibit featured works that have never been exhibited before. It is, however, the fifth showing of the artist’s work in the space. The exhibit drew an eager crowd that seemed to forgo the wine in favor of focusing on the art.The dapper Ronald Greenberg, the gallery’s co-owner, strolled by in a thick gray suit. “We’re always excited [for Diebenkorn],” he said.

Though the catalog of paintings was beautiful, it was out of date by the time the show opened.The word”sold”lined the right margin of the list, and just a few paintings were left to be claimed. Prices for the pieces in this collection ranged from $110,000 to $275,000.

The highest-priced work, a bright streetscape, sold early. “It’s the most typical of his palette,” the gallery’s curator, Augusto Arbizo, said. “You also see in it what he uses to abstract into a later series, the Ocean Park series.”

Mr. Arbizo thematically installed the collection. Two walls were filled with colorful figures, and another two walls held gray-toned still life paintings. The entrance room to the gallery was lined with vibrant landscapes. Several of the pieces were chosen by the Diebenkorn Estate, which the gallery represents.

Present at the reception was Polly Adams, who appears in the controversial film “United 93.” Carl Scorza, the artist in residence on Governors Island, looked admiringly at an untitled streetscape: “I paint the way he does,” he said, “I paint life.”

Until May 20 (730 Fifth Avenue at 57th Street, 212-445-0444).