Babbage's Difference Engine No. 2 (2008)

"Charles Babbage designed Difference Engine No. 2 between 1846 and 1848. Contemporary drawings illustrate a machine--never built during his lifetime--that calculates and tabulates polynomials, printing results in hard copy and producing stereotype molds for plates intended for use in conventional printing presses." - Doron Swade

This is Babbage's Difference Engine No. 2 on display at the Computer History Museum in Mountain View, California. There are only two in existence - the other is in London. For more details about the project, see this article:

http://www.electronicsweekly.com/Articles/2008/04/01/43442/babbages-difference-engine-heads-for-california.htm

And for the history of Charles Babbage and his engines, visit the Computer History Museum's website:

http://www.computerhistory.org/babbage/