On 6 May 2013, Banco de México issued a revised polymer 50-peso note like the preceding issue (B705), but with more advanced anti-counterfeiting features, including a color-shifting butterfly printed on the transparent window, tactile intaglio printing, microprinting, novel serial numbering, and a larger transparent window with hidden image which can be revealed using a laser pointer. Existing notes will circulate in parallel with the new note. Series A-F.
Courtesy of Cedrian López Bosch, Beto Rios, and Ricardo Ramirez Gonzalez.