This primary source comes from the Records of the National Park Service.
National Archives Identifier:
6877013Full Citation: Chart of Chesapeake and Ohio Canal Toll Rates for Various Commodities by Unit of Measure; 7/1/1857; Records of the National Park Service, Record Group 79. [Online Version, https://www.docsteach.org/documents/document/chart-of-chesapeake-and-ohio-canal-toll-rates-for-various-commodities-by-unit-of-measure, May 17, 2024]