I had a look at the J.S. Bach 2 voice inventions.
They are the Czerny edition, which is heavily edited and considered “wrong” by most purists.
However, like xvimbi, I like comparing scores and I think much can be learned from it. The printing came up with very good quality. Czerny learned his Bach from Beethoven, so this edition can perhaps give you a glimpse on how Czerny (and by implication) Beethoven may have played it. A pretty wonderful feature was that the original autographs (in Bach’s handwriting) are also available (only for the two voice inventions, unfortunately). They even make good pictures to hang on the walls!

I wouldn’t recommend relying solely on this edition, but it is certainly an interesting extra edition. (My favourite edition is the ABRSM “Signature Series” edited by Richard Jones).
I have just glanced over other pieces, but many of them do not supply the information about the original edition as in the case of the 2 voice inventions.
Best wishes,
Bernhard.