si-african-american-history: Placard with “STOP RACISM NOW” message, late 20th century, Smithsonian:
si-african-american-history: Placard with “STOP RACISM NOW” message, late 20th century, Smithsonian: National Museum of African American History and Culture Size: 23 × 23 × 1/8 in. (58.4 × 58.4 × 0.3 cm)Medium: ink, paper, cardboard -- source link