Where are some other clear reproductions of the WTC title page, in print?
In addition to those I have cited in the article (books and musical editions): see the encyclopedia MGG (Die Musik in Geschichte und Gegenwart), as an inset within its article about Bach. I have checked the 1966 edition and another from the 1930s-40s; both have a clear reproduction (which might have been copied from the 1911 Grove dictionary!). Andreas Sparschuh has posted a photocopy of this MGG excerpt on his own web site in June 2005; that is apparently the copy he has been working from in his own research. In addition to the photographic reproduction in various books and editions of the music: I have the 1958 LP set of the complete WTC played by Wanda Landowska, RCA LM-6801. There is a full page given to a photo of this title page, approximately 75% of actual size, in its deluxe booklet of program notes. The page already (by 1958 or earlier) shows the closely cropped margins that have removed part of Bach’s drawing, and places where the ink has faded, and the bottom right side of t
