Telegraphy miscellany, 4073, manuscript box: 64 - folder 1. Division of Rare and Manuscript Collections.
Telegraphy miscellany, 4073, manuscript box: 64 - folder 1. Division of Rare and Manuscript Collections. https://aspace3-test.library.cornell.edu/repositories/2/resources/2663 Accessed November 27, 2024.
