These children's book covers are from the late 1800's. If you want to see more, the Baldwin Library of Children's Literature (at the University of Florida) has a digital archive of children's books that you would not believe:
"This is the product of Ruth Baldwin's 40-year collection development efforts. A great strength of the collection is the many English and American editions of the same work. Other strengths of the collection include 300 editions of Robinson Crusoe, 100 editions of Pilgrim's Progress, fables, juvenile biography, 19th century science and natural history, 19th century alphabet books, moral tales, fairy tales, 19th century juvenile periodicals, 19th century boys' adventure stories, 20th century boys' and girls' series, Little Golden Books, and juvenile publications of the American Sunday School Union and other tract societies."
Have fun looking, you won't be sorry-
(Thanks to Internet Weekly)