This primary source comes from the Records of the Patent and Trademark Office.
National Archives Identifier:
6104272Full Citation: Patent Drawing for F. W. Taylor's Lawn Tennis Net,; 4/9/1889; Utility Patent Drawings, 1837 - 1911; Records of the Patent and Trademark Office, Record Group 241; National Archives at College Park, College Park, MD. [Online Version, https://www.docsteach.org/documents/document/patent-drawing-for-f-w-taylors-lawn-tennis-net-sheet-1, January 18, 2025]