A rare prototype of the original Apple Macintosh featuring a 5.25-inch disk drive instead of the 3.5-inch drive the personal computer eventually shipped with is headed to auction again as part of Bonhams’ upcoming History of Science and Technology collection.

One of two Apple Macintosh prototypes extant and already the most valuable Apple Macintosh to have ever sold at auction, #M0001 is heading for auction at Bonhams’ History of Science & Technology Sale.

A prototype of a vintage Apple Macintosh from 1983 is up for grabs at auction, with the "Twiggy" drive model expected to exceed $100,000 when it goes under the hammer.

If you're interested in vintage Apple technology – and you have a lot of money sitting in your bank account – we've got the perfect impulse buy for you: a very rare Apple Macintosh #M0001 prototype from 1983 is up for sale, and it could break records for a computer of this type.

A rare Apple Macintosh prototype from 1983, featuring the "Twiggy disk" drive, is expected to sell for over $100,000 at auction (via

A rare Apple Macintosh prototype, known as #M0001 and featuring an early 5.25-inch 'Twiggy' disk drive, is set for auction on October 23 at Bonhams. This prototype is expected to break previous auction records due to the recent surge in prices for early Apple computers.