Printemps Series and Archie Gunn
As with a number of series, Altemus used illustrations by well known artists of the era to illustrate their covers and/or end papers. Alphonse Mucha and Aubrey Beardsley are two artist examples. The Printemps Series (#152) had the same cover illustration on each of its 25 titles. The books were published in 1895. This series of reprints is significant in that four early Sir Arthur Conan Doyle books are included in the book list. For more see
http://henryaltemus.com/series/series152.htm
Archie Gunn (1863-1930) did the illustration that is on the covers of this series.
Gunn’s art nouveau illustrations of lovely young women were found on watercolor paintings, posters, book and magazine illustrations and postcards as well as magazine covers and the like. I have seen late 19th century Gunn book cover illustrations on books published by A. L. Burt, Tennyson Neely, Frederick A. Stokes, and R. F. Fenno just to name a few.
He was quite prolific. Right now there are 125 Gunn postcards listed for sale on Ebay. He obviously had an incredible output.
I have been unable to locate the exact picture that is on the Altemus cover. It is shown below.