15thc perception on swallowtail merlons?

[R. Sale]

Fishtail merlons? Fishtails are for mermaids. 

You are not allowed to view links. Register or Login to view.

Probably a reference to the straight-line interior versus the curved-line interior versions of Ghibelline merlons. Still looks as if the curved versions are topped with curved tiles as these will tend to show a sort of lip along the upper edge (the tile), whereas the straight-line versions are all rock or brick masonry.

The article does mention La Tour de l’Archet Morgex near Courmayeur as an early structure.
Here is a photo.

You are not allowed to view links. Register or Login to view.

Also Brescia castle, not dated, but Brescia was listed as a Ghibelline city.

You are not allowed to view links. Register or Login to view.