The original copper-nickel elephant-head 20 cent coin had a scalloped edge (KM11, 42, 50, with different obverse portraits). It was replaced with this round coin, minted in 2011 only. It would be replaced the very same year with a smaller version.
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.