There is a monk hidden in the letters, worshipping the #palindrome in the cross (oro te ramus aram ara sumar et oro). In 1503, the author of the book made himself part of his book: "I, Ramus, pray to you at the altar so that at the altar I may be taken up, I also pray".
@dbellingradt (Rabanus, not Ramus : see https://enseignement-latin.hypotheses.org/12096)
https://histgymbib.hypotheses.org/10057
@chaprot @dbellingradt
Jubelgesang eines Schwans
https://histgymbib.hypotheses.org/tag/advent2020
@dbellingradt ... and: the first monospaced type was serif type #QED