The Marbeau Cousins was published by Rand McNally in 1898, and W. W. Denslow's cover for this title went through quite a few changes in color and design. I recently picked up another copy of the book, but I doubt I'll ever have all the variations!
This copy has changed to cover and spine only, and a reduced size which resulted in one crow losing his tail! As usual, Denslow's seahorse has vanished from the cover. The cover does still use gilt for the title and author. A version also exists with white lettering rather than gold. There's no indication of when these changes occurred.