The title and image obtained from Tibble. His caption is "A Coffle: Captives were marched, often in yokes, from the inland areas of Africa to the coast for sale to Europeans" (p. 102). This image is also published in James Walvin, An African's Life: The Life and Times of Olaudah Equiano, 1745-1797 (Cassell, 1998, p. 11), which cites the original source as Verney Lovett Cameron, Travels in Central Africa (1873). However, there is no book by that title under Cameron's authorship. The image is also in Walvin's Black Ivory (London, 1992), but no original source is identified. This image is one of several images derived from the original engraving in David and Charles Livingstone, Narrative of an Expedition to the Zambesi and its Tributaries (London, 1865). See image reference C019.
Published in Anthony Tibbles (ed.), Transatlantic Slavery: Against Human Dignity (London: HMSO, 1994), p.102, fig. 23; the original source is not identified.
Image is in the public domain. Metadata is available under Creative Commons Attribution-NonCommercial 4.0 International.
"A Coffle", Slavery Images: A Visual Record of the African Slave Trade and Slave Life in the Early African Diaspora, accessed February 17, 2020, http://www.slaveryimages.org/s/slaveryimages/item/420