14-10-2025, 12:47 AM
Using the same 400 dpi scan of the Marci letter, I could measure the horizontal and vertical sizes of the watermark according to the two arrows:
width = 5.1 cm (between the edges of the hat rims),
height = 2.1 cm (bottom of hat rims to highest round top).
The other letter shown by Rich is from 12 January 1641, so more than 20 years earlier.
width = 5.1 cm (between the edges of the hat rims),
height = 2.1 cm (bottom of hat rims to highest round top).
The other letter shown by Rich is from 12 January 1641, so more than 20 years earlier.
![[+]](https://www.voynich.ninja/images/collapse_collapsed.png)