15thc perception on swallowtail merlons?

[Mark Knowles]

[We just don't quite know where to place it

In the context of my hypothesis there are two locations to place it as there are two sets of swallowtail battlements drawn on the rosettes foldout. In my hypothesis the two locations are the walls of Bellinzona and the Milan Castle. I suspect that the page was drawn in real time so both drawings were drawn at or near the location in question.

I mention this as the presence of more than one set of swallowtail battlements is often ignored.