An Apple-1 and a 17th century mechanical calculator replica are just a few of the nerd delights on auction later this month.
The highlight of German auctioneer Breker's May 25 "Auction of Firsts" is this functioning Apple-1, believed to be only one of six working systems like it still in existence. Built by Steve Jobs and Steve Wozniak in Jobs' parents' garage, it includes the original manual and a letter from Jobs to the original owner.
Breker estimates it could sell for as much as $400,000. (Watch a video of the system in action.)