This stamp, part of the American Painting series, features Mary Cassatt's "The Boating Party." Cassatt was a leading figure in the Impressionist movement and was known for her intimate and unsentimental portrayals of women and children. "The Boating Party" is one of her most ambitious works, notable for its unusual perspective and the bold use of color and form, which show the influence of Japanese woodblock prints. The painting depicts a woman and child being rowed by a man in a boat, a seemingly simple scene that Cassatt imbues with a sense of monumentality and psychological complexity. The issuance of this stamp was a significant recognition of Cassatt's importance in American and international art history, at a time when female artists were often overlooked.