s-Graphemes
In both Gothic type and roman type texts, two forms of the lowercase letter s can occur: the long s (ſ, U+017F, LATIN SMALL LETTER LONG S) and the round s (s, U+0073, LATIN SMALL LETTER S). They are distinguished in the transcription.
The original composite form of long s + s is retained: ſs
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The ligature long s + z is displayed as ß.