The Silver prints were made on a paper sensitized with an emulsion silver salts; usually silver bromide, iodide, or chloride. After developing, they were carefully toned to bring out and enhance the subtle tones of Curtis’ prints and to make those prints more permanent. Frequently, they were double printed to give a border effect. 

Edward S. Curtis, unlike most photographers of his era, actually created a larger body of Platinum Prints than of Silver Prints. While Platinum Prints comprise well under one half of one percent of the extant Curtis work, the Curtis Double Border Silver Print exists in even fewer numbers by a significant factor. 

This print is crisp and brilliant, the exposure is perfect with a vivid ink signature appearing in pristine original condition. This is simply the finest example of a Canyon de Chelly Double Border print I've ever seen.