MLA

Marsh, Othniel Charles, 1831-1899. Hammond Typewriter Company. Box 14, folder 586. 1898. https://collections.library.yale.edu/catalog/32559209.

APA, 6th edition

Marsh, Othniel Charles, 1831-1899. (["Box 14, folder 586"])(1898)[Hammond Typewriter Company]. https://collections.library.yale.edu/catalog/32559209.