“Enclosure: William Thornton’s Designs for Maces, 8 June 1793,” Founders Online, National Archives, https://founders.archives.gov/documents/Jefferson/01-26-02-0216. [Original source: The Papers of Thomas Jefferson, vol. 26, 11 May–31 August 1793, ed. John Catanzariti. Princeton: Princeton University Press, 1995, p. 238.]