Between 1905 and 1983, Mexico issued nine different 50-centavos coins. The first five were silver, each getting progressively smaller. Those were followed by a large bronze coin (KM450, 1955-1959) then this copper-nickel issue (1964-1969).
In 1970, this coin was replaced by KM452 with a stylized version of the eagle eating snake.
All coin images in Daniel's Coin Zoo are from my personal collection. I collect, research, and personally photograph every coin displayed on this site. PLEASE do not take my images without permission. If you would like to use any coin image you see, just ask me. Thank you.