Larry Groebe writes "The most amazing unified collection of books, papers, and similar material on the history of computing is about to go on sale at Christie's auction house. Want a signed copy of 'Rossum's Universal Robots?' Original papers on the Eniac? Alan Turning's original proof of universal computability? Letters from Charles Babbage himself? It's in there, to anyone with (a whole lot of) money. Check out the estimated price on the 1974 journal article by Vinton Cerf describing IP addressing. It's increased in value in the past 30 years...just a bit."