The British library has put up some of their books for “virtual viewing”. One of these books is a 700-year old Mushaf of the Quran. The whole mushaf isn’t online, just a small selection.
Visit the following link: http://www.bl.uk/onlinegallery/ttp/ttpbooks.html and go to “Baybars’ Magnificent Quran” (on the top) and wait for it to load.
It’s quite wonderful. [But be careful when reading the British Library’s Commentary (when you press “text”). It’s full of mistakes.]
This is what the Mushaf looks like: