Reclining Female 

This pencil sketch, "Reclining Female", is a rare work by American abstract expressionist Mark Rothko, best known for his large-scale color-field paintings. This piece offers a glimpse into Rothko's early artistic development, featuring a more figurative style before he fully embraced abstraction. The sketch, likely a study for a larger work, depicts a reclining nude, emphasizing the figure's form with simple lines and hatching. The loose, gestural quality of the drawing suggests a rapid execution, possibly a spontaneous observation of the model.