Which things in the manuscript can be dated?

[MarcoP]

For a while, I believed that the Crossbow Sagittarius in Österreichische Nationalbibliothek – cod. 1842 (originally discussed You are not allowed to view links. Register or Login to view.) could date to the end of the XIV Century. Then Rene pointed out You are not allowed to view links. Register or Login to view. that dates it to one of 1407, 1418 or 1429.

Years ago I collected Crossbow Sagittarius images in a pdf I posted You are not allowed to view links. Register or Login to view.. In addition to the incorrect dating of Cod.1842, I now doubt that the two early crossbowman-capstones in the PDF belong to zodiac cycles.
If Cod.1842 dates to 1429, the earliest known crossbow-Sagittarius in a manuscript is the one in You are not allowed to view links. Register or Login to view. (1425-28), that I think was originally pointed out by Rene. This manuscript has the date 1425 in You are not allowed to view links. Register or Login to view. and 1428 You are not allowed to view links. Register or Login to view.: in this case, things are as certain as they can be.

It was Prof. Ewa Sniezynska-Stolot (via You are not allowed to view links. Register or Login to view.) who, in 2001, pointed out the relevance of this motif for the dating of the illustrations.