Q: Would you mind taking a look at this book for me? I have had a hard time finding one exactly like it.
MARMION: A TALE OF A FLODDEN FIELD
A: Your book can be found in the Petit Trianon Series here http://henryaltemus.com/series/series143.htm in the 1901-1902 published books.
The cover illustration was done by Alphonse Mucha (1860-1939). He was a well know Czech artist who excelled in the art nouveau area. He illustrated magazine covers, book covers, posters etc.
He illustrated two of the the Petit Trianon 1901-1902 covers. This one is called Poetry. Altemus modified the picture a bit as can be seen with the side by side comparison. If you look carefully, it appears that on the Altemus cover the woman has her elbows on a book.