Just look at the full size version, and the details of how they made a relatively sized full cab for her in place of an ordinary back seat in a 7 passenger touring car, and just below and behind the driver is a set of stairs, and a regular trunk under the footman on the back. Thanks to Navarro Zonta who shared this with Nik of http://carrosantigos.wordpress.com/ who finds all the coolest stuff! 
Bottom two images are from a great source of info and factory sales brochure images: http://www.american-automobiles.com/Cole-1919-1925.html 