Poppelbaum's ß (you can see it in the graphic attached to my previous post) was official since its acceptance by the mixed commission.
It was only later, that some type designers began to use the form of an ſs ligature, believing Tschichold's wrong assertions.
Fortunately, not everyone was taken in, and if you search through MyFonts or a similar site, you will find many new typefaces using the historically correct form.
(Sorry for double-posting by accident.)
Poppelbaum's ß (you can see it in the graphic attached to my previous post) was official since its acceptance by the mixed commission.
It was only later, that some type designers began to use the form of an ſs ligature, believing Tschichold's wrong assertions.
Fortunately, not everyone was taken in, and if you search through MyFonts or a similar site, you will find many new typefaces using the historically correct form.