This detail page shows several photos of the book to show what a first edition looks like.  The images are original photos taken of my personal copy of the first edition book. 

Under the Andes (1914):

• This novel was originally published in several issues of All-Story magazine in 1914
• The first edition has green boards with a black spine, with gold lettering and a logo on the spine.
• The price ($15.95) is at the top of the front flap.
• It was published, long after Stout's death, in hardcover format by Mysterious Press, which is what is represented here.