Something for an idle hour, which others may already know -- Harvard has put high resolution digital images of Keats's copy of Book I of FQ online.  Here is the link: 

https://iiif.lib.harvard.edu/manifests/view/drs:14638555$1i

It's the whole of Book I, in the 1715 Hughes edition of the poetical works.  No written annotations, but there are many under-linings and bracketings of lines and whole stanzas which are themselves fascinating to contemplate, just to think of Keats's eye (and ear) taking them in, taking lessons from them.  I suspect other books have similar marks, but they're not online.  The whole set is in the Houghton Library Collection, part of a bequest from Amy Lowell. 

Ken