Q: Hello, I can’t seem to find a copy with this cover. Lady of the Lake
A: Your book is part of the Petit Trianon Series and was published in 1903-1904.
All of the titles in this series are reprints.
The left half of the cover of this format has been seen in blue, pink or beige. The right half has one of sixteen different flowers.
These books originally came within a labeled box. An example is shown below.