This is a Gigapixel image of the Difference Engine No. 2 (DE2) located at the Computer History Museum, Mountain View (www.computerhistory.org). Charles Babbage designed the DE2 but it was never built in his lifetime. Over 100 years later a team at the London Science Museum led by Doron Swade built the first DE2. This particular machine, owned by Narhan Myhrvold, is one of the 2 in existence, the other being at the London Science Museum.
The image was stitched from 132 individual photographs using Microsoft Research’s Image Composite Editor. The photographs were taken on August 26th, 2010 by Joseph M. Joy as part of an ongoing collaboration between the Computer History Museum and Microsoft Research. Please contact the museum for more information.