Santiago de Curucelaegui y Arriola

Signature taken from http://pares.mcu.es/ParesBusquedas20/catalogo/description/420802 (p. 2) Original file: https://ibb.co/brwhxn2 or https://imgbox.com/jzeG3Yne or https://pixhost.to/show/524/369308950_gabriel-de-curucelaegui-s-signature-2.jpg The author died in 1689. So, this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1928.