Study of a Right Arm and a Left Hand 

This is a pencil study by Benjamin West, an important artist of the American Revolutionary period. "Study of a Right Arm and a Left Hand" is an example of West's practice of anatomical study, focusing on the precise detail of the human form. The drawing illustrates the careful observation and skill required to capture the nuances of human anatomy. Such studies are often used by artists as preparation for larger, more complex works, demonstrating the artist's technical proficiency and dedication to artistic accuracy.