This primary source comes from the Records of the National Archives and Records Administration.
National Archives Identifier:
6922202Full Citation: The Box on which the Plate was Heated to Soften the Wax and the Printer Mr. Angelo LoVecchio; 4/13/1976; Records of the National Archives and Records Administration, Record Group 64. [Online Version, https://www.docsteach.org/documents/document/the-box-on-which-the-plate-was-heated-to-soften-the-wax-and-the-printer-mr-angelo-lovecchio, March 28, 2024]