Gold-colored 11-inch metal plate with a design of the Aztec calendar and caption: 'Al Sr. Pete Wilson, Presidente Municipal De San Diego, De Su Amigo Rafael Tirado Canizales, Presidente Municipal, De Mazatlan Sinaloa, Mexico, April 1975', which translates to: To Mr. Pete Wilson, Mayor of San Diego, from your friend Rafael Tirado Canizales, Mayor of Mazatlan Sinaloa, Mexico, April 1975. Occasion information was not provided to the City Clerk's office.