[Unidentified body of water beside two railroad tracks and a telegraph line]
2016831
Found In:
Beinecke Rare Book and Manuscript Library > [Unidentified body of water beside two railroad tracks and a telegraph line]
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.