c. 1952
Verso printed with grid: Malby & Sons, Lith., sheet 22 x 30--1000 meter grids--scale 1:25,000 meters
76 x 56 cm (29 15/16 x 22 1/16 in.)
Knoedler Galleries, New York, New York, sold; to Lois Orswell, 1952, bequest; to Harvard University Art Museums, 1998.

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