Making a Corinthian Helm?

[Giannis K. Hoplite]

Matt,i have to disagree on nasal thickness. It's 100% certain that this thickness was not achieved by turning the edges. This was done partially to the eyw holes,though those do not show as great thickness and actually they are not turned,just a ridge is chiseled to create the inner edge of the raised area around the eye holes.
I have seen nasals from the back. They are all plain. When the nasals have an edge,this is usually no more than 0.5 mm.

I can provide photos of nasals that are clrearly solid and not edges turned.

I also don't believe the frontal area was cast. The decoration on it,be it brows above the eye holes or flowers on the forehead or sculpted scenes on the cheeks is visibly beaten from the inside. I have also noticed that only the nasal is very thick and this thickness in most examples(especially the later ones) is decreasing emediately next to it so the eye holes have a much smaller thickness and the decoration around them can be beaten (and not cast).
This is visible from fragmentary examples.
Like the others,i believe a small part of the original cast thick bronze sheet (or whatever shape it might had) was left thicker in the area where the nasal was estimated to have been cut.
Khairete
Giannis