[No. 854. The Yosemite Valley, From The Mariposa Trail, Yosemite, California]
2016784
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Beinecke Rare Book and Manuscript Library > [No. 854. The Yosemite Valley, From The Mariposa Trail, Yosemite, California]
A mammoth plate is a photographic negative plate size, usually 18 by 21 inches (53.5 x 45.7 cm.) with photographic prints made through contact printing.