Which things in the manuscript can be dated?

[Wladimir D]

Anton is f49v. In my opinion, pagination is also written in this style. 1450-1505g.
Labels for notebooks Q19, Q20 made later.
Another point. Through numbering of pages was done by the owner of the manuscript, and not by a simple copyist (artist, bookbinder), since he had the right to decide what should be in the manuscript and what should not. If the first argument (repeated numbering f67r1) can be explained with a binding error, then the second case (I publish this for the first time) is much more interesting.
Turn to page 15r. Its numbering is written by the hand of the same person, but with fresh ink after re-checking the contents of the manuscript. During the initial page numbering, the owner did not notice any compromising record (cipher?) on the marginalia field f15v. The owner shortened (cut off this entry) the page by 15 mm. As a result of this, the number 5 disappeared on f15r. The owner washed off the remnants of the number “1” and gave the new number “15” with fresh ink. (It’s better to watch the old scan. The pressure tape will not interfere)