There are manuscripts of the Speculum of Honorius of Augustodunensis around online. Here’s one at a library in Madrid, and a PDF can be downloaded from here! The site, curiously, is silent about what library this item belongs to, or the shelfmark. That’s… awkward.
At the mighty BSB in Munich, there’s another one here, although it’s a scan of a microfilm. No messing about on the web page tho: the header tells us this is BSB Clm 2581. You can download the whole thing in PDF too, although somewhat slowly.
At e-Codices, where lurk the St Gall manuscripts, sure enough there’s another one here. It’s Ms. Sang. 1075. No PDF download tho. Pleasingly, the URL reflects the shelfmark, as they all should.
But I want to avoid sliding off and editing or translating Honorius, or even the terribly tempting habit of collecting mss in PDF. However I am transcribing the S. Nicholas bit of the Speculum – after all, I do need the Latin text for the extracts that are listed as BHL 6173 and BHL 6175.