For superfans of vintage Apple products, a working Apple Lisa 1 is the holy grail of collector's items. First released in 1983, the pioneering computer (the first to feature a graphic interface and a mouse) was a commercial failure and only sold 100,000 units, very few of which survived to the present day. But an eBay seller is offering up the super-rare opportunity to own one, as DesignTAXI reports.

The computer in question, selling for more than $55,000 as of January 8, is in mint condition. According to the listing, it has only been turned on a few times.

professorinschubert, eBay

As you can see in the video below, everything seems to be in working order.

The seller estimates that there are only 20 to 100 Lisa 1s left in the world. And even for a Lisa 1, this one is a rare machine. Lisa computers, reportedly named after Steve Jobs’s daughter (though there have been some other theories about the name), were the only machines Apple released with its doomed Twiggy disk drives—a faulty format that turned out to be incredibly unreliable, leading to the product’s downfall. Apple then released the Lisa 2 with standard 3.5-inch floppy disk drives, offering customers free upgrades for their Lisa 1 Twiggy drives.

Since most customers jumped at the chance to make their $10,000 computer ($24,700 in today's dollars) run properly, Lisas that still have their original Twiggy drives are incredibly hard to find. The Lisa 1 on sale still has its twin Twiggy drives though, and they work, at least as well as the drives ever worked.

Whether the seller will actually get his $55,000 is questionable. In 2010, a similar Lisa 1 sold for just $15,000. But the model seems to have gained a lot of value since then, since one sold for $50,000 in November 2017.

[h/t DesignTAXI]