The second English edition of Wilhelm Gesenius’s Hebrew Grammar (ed., E. Kautzsch, trans. A. Cowley) is based on the 28th edition of the German text. I recently came across a curiosity in the English text that made me want to have a look at the German behind it. Thankfully, Internet Archive has several versions of Gesenius-Kautzsch, and at least one of these is of the grammar’s 28th edition.
Meanwhile, the only complete edition of the Old Latin remains that published by Pierre Sabatier (Reims: 1739–1749; see Würthwein, Text of the Old Testament, 147). A later version of this edition, with some volumes reissued in later years, seems to have had three volumes, all of which are available on Internet Archive:
Of course, if there are additional volumes that I have missed, comments identifying those volumes and links to them (if they have been made available online) are most welcome.