These tickets are the LAST PRINT of the Mexico City's Metro after 54 years of its opening. They made 14 million pieces and there wont be paper tickets anymore because the MI magnetic card will be mandatory to use the service. The Metro logo was co-designed by Lance Wyman and Pedro Ramirez Vazquez.
Serial letters and numbers will be different from the ones in the picture.
I only use international registered mail to guarantee delivery.