I found some further examples in a couple German books about music engraving. Especially, Helene Wanske (last example below) mentions that the “recent” practice in contrast to the former one is to vertically align the stems so that there are only two note columns which seems to be the case in sheet music engraved by Schott Music (Mainz, Germany).
Karl Hader: Aus der Werkstatt eines Notenstechers (From the Workshop of a Music Engraver), Vienna 1948
Herbert Chlapik: Die Praxis des Notengraphikers (The Practice of the Music Engraver), Munich 1987
Helene Wanske, Musiknotation (Music Notation), Mainz 1988



