This image shows women, some with pipes in their mouths, removing fish heads on a pier. Harper's Weekly: A Journal of Civilization was an American political magazine based in New York City and published by Harper & Brothers from 1857 until 1916. It featured foreign and domestic news, fiction, essays on many subjects and humor, alongside illustrations. It covered the American Civil War extensively, including many illustrations of events from the war.
Harper's Weekly (Sept. 28, 1861), p.621; also published in Harper's New Monthly Magazine (1857), vol. 14, p. 438.
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"Heading Herring", Slavery Images: A Visual Record of the African Slave Trade and Slave Life in the Early African Diaspora, accessed October 18, 2021, http://slaveryimages.org/s/slaveryimages/item/953