An original Apple Computer Inc. sign created around 1978 with Apple's well-known rainbow logo is set to be auctioned off later this week.

Measuring in at four feet by five feet, the sign is said to be one of the earliest Apple retail signs and was displayed by an Apple authorized reseller who first learned about Apple after attending a 1976 computer conference.

The sign is yellowed and the description says there are "a few surface marks," but overall, the rainbow colors are said to be bright and in good condition. The sign will be auctioned by Nate D. Sanders Auctions on March 26, and the starting price is $20,000.

Source: Macrumors