English Alpha Rho Chi badge operator: Google described at URL: https://www.google.com/books/edition/Baird_s_Manual_of_American_College_Frate/Z1vOAAAAMAAJ...
English Alpha Chi Rho badge operator: Google described at URL: https://www.google.com/books/edition/Baird_s_Manual_of_American_College_Frate/Z1vOAAAAMAAJ...