An eBay user is auctioning off a rare working Apple Lisa 1, which, when it hit the market in 1983, was the first commercial computer with a graphical user interface. Bids on the machine, which boasts a drive for Apple’s short-lived Twiggy floppy disks, will be accepted until Jan. 14, and had reached $55,100 by Saturday.

The Lisa 1, named for Steve Jobs’ daughter, was largely considered a flop for Jobs and Apple, according to a Wired retrospective. It cost the company $150 million to develop the model, but only 10,000 units — priced at $10,000 each — sold. The model was pulled from the market after only three years, Wired writes, and Jobs was eventually yanked from the project to focus on a new effort: the Macintosh.

“The Lisa was a milestone in history of the modern art [of] computers and is nowadays one of the rarest machines existing,” the eBay post reads. “Collectors guess between 20-100 are left on our planet.”

While the machine is probably best as a collector’s item, the eBay auctioneer assures buyers that the Lisa is in good working order, right down to its Twiggy drives.

“This Lisa 1 is optically and technically in excellent condition,” the post reads. “Both twiggy drives are working and spinning perfectly.”