This letter is addressed to Mr. C. A. de Terrazas on July 25, 1933 but that can't be. C. A. de Terrazas stands for Clotilde Amador de Terrazas who's husband was Antonio Terrazas but he passed in 1913. Thus, this letter can't be addressed to him since this letter was written in 1933, 20 years after Mr. Terrazas' death