The claimed Voynich page

[Koen G]

I have always found one detail interesting: the waveform I discovered was called a 'Tilde' (Titulus), and it was located to the right of the number 21, in the upper right-hand corner of the parchment's frontispiece. I discovered that, when placed before or after a number, it indicates an approximation.

"Page number about 21 or so"? Using tilde for approximation is a ~20th century innovation in mathematic notation.