15thc perception on swallowtail merlons?

[Aga Tentakulus]

opinion on the feasibility of cross-checking merlons with other architectural elements in the Rosettes buildings?

   

You’re thinking along those lines.
For example, images 1 and 3 show the same city gate. Difference: approx. 300 years
The question is whether the VM image shows a city gate.
Gates like this are only found in larger cities.
There are other interesting features in the drawings that can be used to identify the region.