“American People Series #19: U. S. Postage Stamp Commemorating the Advent of Black Power”

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"Some of the portraits in her 'American People Series' show elegant black figures subjugated in subtle ways by whites. Later images include a postage stamp of a grid of faces with almost-hidden texts spelling out 'Black Power' and 'White Power.'"— https://www.nytimes.com/2020/06/11/arts/design/faith-ringgold-art.html
“American People Series #19: U. S. Postage Stamp Commemorating the Advent of Black Power”