Q: Looking for info on this book. Thanks
A: Your book is part of the Vademecum Series. See http://henryaltemus.com/series/series180.htm. It was published in 1899. During that year the cover came in a number of different colors. The book was originally published with a labeled slipcase box.
The book is a reprint and only Treasure Island collectors would pay more than a couple of dollars for it.
I have enclosed several other color covers for your interest.