{"type":"rich","version":"1.0","title":"The Transatlantic Slave Trade Volume 3","provider_name":"Heyzine","provider_url":"https:\/\/heyzine.com","html":"<iframe allowfullscreen=\"allowfullscreen\" allow=\"clipboard-write\" scrolling=\"no\" class=\"fp-iframe\" style=\"width: 100%; height: 600px;\" src=\"https:\/\/heyzine.com\/flip-book\/9eb3fdfc75.html\"><\/iframe>","width":1920,"height":2903,"thumbnail_url":"https:\/\/cdnc.heyzine.com\/files\/uploaded\/v2\/9eb3fdfc75fb3e23a09e168dc1955e64b9dfd81f.pdf-thumb.jpg","thumbnail_width":1400,"thumbnail_height":2117}