This primary source comes from the Records of the National Archives and Records Administration.
National Archives Identifier:
6922211Full Citation: Removal of Additional Ink with Cheese Cloth; 4/13/1976; Records of the National Archives and Records Administration, Record Group 64. [Online Version, https://www.docsteach.org/documents/document/removal-of-additional-ink-with-cheese-cloth, March 29, 2024]