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Generally regarded as one of the most beautiful
of the photographic printing methods, Curtis often used the platinum
process to create his "master prints." It was popular until the early
20th century, when the rising cost of platinum virtually removed the
process from the market. Because metallic platinum remains stable
with exposure to air, moisture and water, no process is more permanent
than platinum printing. Favored for their subtle gradations of tone
and matte, and glare-free surface, platinum print photographs are
highly sought after by collectors.
An Ostobo Cowboy - Apache, 1903
An unpublished image.