‘A Circular Ceiling Design With Clouds And Roses’ ( Second Half 19th Century).

Marcos Grigorian, Eclipse, (found construction object on acrylic mixed media compound on board), 1988 [Leila Heller, New York, NY, and Dubai. © The Estate of Marcos Grigorian]

Installation of Robert Indiana's 12-foot sculpture 'Love' (1966). The O being lowered into place at Fifth Avenue and 60th St., NYC, 11-29-1971. Photo: Don Hogan Charles / The New York Times

The O in the "LOVE" sculpture being lowered into place. It was cold and the skies leadenly forshadowed rain, but "LOVE" arrived monumentally in New York yesterday in time to gladden the city's face for Christmas. "LOVE," a five-ton sculpture by Robert Indiana, the pop artist, will be on display for the next six weeks at Fifth Avenue and 60th Street, at the entrance to Central Park, where it will be highly visible to midtown strollers and shoppers. [11-29-1971]

Photo: Don Hogan Charles / The New York Times

Installation of Indiana’s 12 foot LOVE (Cor-Ten steel) (1966-1970) at Fifth Avenue and 60th Street, New York, November 1971. Photo: Eliot Elisofon. The University of Texas | src Robert Indiana

Listen/download: EICV7" No. 16 by Ike Yard

Kumi Sugaï (1919-1996) [Japan] — ‘Geometric Composition (Signal C)’, 1974. Color screenprint on vellum (74 x 55,6 cm).

Paco Knöller, Aufwachraum, (pencil and colored pencil on paper), 2015 [Galerie Thomas Schulte, Berlin. © Paco Knöller]

Emilio Scanavino (Italian, 1922-1986), Composition, 1957. Collage and gouache, 66.5 x 50 cm.