Auction house Sotheby's are unloading some old Atari junk. You know. Junk like original concept art for Atari characters, specifications guidelines and marketing material proofs. Old crap that nobody wants. Old crap like this:

By fortunate coincidence, some of Atari's most popular and enduring games are among those with the deepest representation here. For example, Dig Dug, a maze game with the objective of eliminating underground monsters, has a huge group of materials ranging from typewritten copy for the game manual to original color sketches of the various bonus fruits and vegetables to geometric black-and-white versions of the same to a fine watercolor drawing of a Pooka to a mock-up of a TV-screen diagram.

LOT 151 PROPERTY OF VARIOUS OWNERS ATARI VIDEO GAMES (registration required) [Sotheby's, via Opposable Thumbs]