Patriotic covers were a popular form of visual propaganda and became a collector’s item during the Civil War. Produced both in the North and South, these envelopes featured patriotic imagery and slogans, although some—primarily printed in the North-- employed stereotypical and exaggerated images of the speech, dress, and physical characteristics of African Americans.

This cover, published in Cincinnati, features an African American boy in ragged clothes inflating a bag marked “Treason.”