Pennies!

This morning when I was counting cash I came across a penny that I had never seen before. It was a 2009 penny with a picture of Abraham Lincoln on the back of it sitting on a log reading a book. It really threw me off as I had never seen a penny that was different on the back except for pennies that were made before the 1950's in which it just says 'one cent' instead of having the Capital Building. I looked it up and found that they released 4 different penny back designs for the celebration of the bicentennial of Lincoln's birthday and the 100 year existence of the one cent. This is really going to ruin my ability to quickly spot and separate out Canadian coins...