01-07-2008, 03:45 PM
It is quite difficult to make a flat boss fit a cylindrically curved shield (scutum, e.g.) but it would not be such a difficulty to fit a round, flat boss to a spherically domed shield. The difference is primarily that the geometry of the "dished" part of the boss does not need to change, just the angle of the flange. And a spun boss could just as easily be made with an angled flange.
M. Demetrius Abicio
(David Wills)
Saepe veritas est dura.
(David Wills)
Saepe veritas est dura.