Caption: SPECIAL ATTENTION TO EDITORS: FOR APN SUNDAY ILLUSTRATIONS SUBSCRIBERS USING COLOR:Regarding the APN Sunday Illustration of the pony express drawing, for use Sunday April 3, with Tome Henshaw's undated story, enclosed here are the following:1. A line cut reproduction of the key illustration to be used as the regular APN story illustration in black and white.2. A line cut reproduction in black for use as a second color with the key plate. This second color plate is in register with the key illustration. 3. A two color proof of the map from the above two reproductions.
The front and back of this photograph are pictured below:
