20g Robert Flaherty, Nanook of the North, 1922. USp By webmaster | Published December 30, 2025 | Full size is 1141 × 1500 pixels 20f Acoma Man by Edward S. Curtis, 1905. USphotogravure from 35mm slide, one of a kind positive master set, 1976. 21 Acoma Man by Edward S. Curtis, 1905. 35mm USslide of the photogravure, one of a kind positive master set, 1976, special Kodacrome black & white process