Doyer I from 1958 is one of eight gouaches on paper by Philip Guston that were shown at Sidney Janis Gallery the same year (estimate $200/300,000). Its title, likely inspired by Doyers Street in Manhattan’s Chinatown, is a captivating tribute to the New York School of the 1950s and 1960s. The composition recalls the city skyline and rooftops of the artist’s surroundings.

Robert Motherwell’s work on paper Three Important Personages was included in the artist’s first solo show at Peggy Guggenheim’s Art of this Century Gallery in 1944 (estimate $30/50,000). Upon reviewing the exhibition, Clement Greenberg declared that Motherwell, along with Pollock, would be a defining voice in the future of American painting. Guggenheim would have a defining impact on Motherwell’s career, also arranging for a group of works to travel to the Arts Club of Chicago and to the San Francisco Museum of Art in 1946.

Representing Color Field and the second generation of Abstract Expressionist painters, Morris Louis bookends the Langs’ collection with his Number 21 from 1962 (estimate $400/600,000). Previously owned by noted collector Carter Burden, Number 21 is one of the best examples from the artist’s series of Stripe paintings.