I also came across this book of Camelot period books three days ago...
http://www.doverpublications.com/zb/samples/46816x/art40.htm
The dates are great, as well
Aubrey Beardsley's Le Morte D'Arthur was 1893 to 1894 (black and white)
William Ernest Chapman (New York and Europe)'s Story of Sir Galahad was 1908 - in color
Walter Crane's King Arthur's Knight was 1911 - in color
William Russell Flint (Russell Flint, known later as Sir William Russell Flint) published Le Morte D'Arthur 1910-11 (four volumes) - 48 illustrations in color
HJ Ford's Book of Romance (Victorian England) with Arthurian tales was 1902 - color and black and white
William Pogany was Parsifal, 1912 - in color
Howard Pyle published n the U.S. 1903, 1905, 1907, 1910 for four King Arthur books...black and white
It seems a Celtic Revival!
Cerulean