This signature is believed to be ineligible for copyright and therefore in the public domain because it falls below the required level of originality for copyright protection both in the United States and in the source country (if different). In this case, the source country (e.g. the country of nationality of the signatory) is believed to be ประเทศสเปน.
Note that this tag cannot be used on all signatures, as not all signatures are copyright-free.
Uploaded a work by Manuel Mac-Crohon from [https://pares.mcu.es/ParesBusquedas20/catalogo/description/1701458 Cese como gobernador capitán general de Rafael Izquierdo] (Image 3) with UploadWizard