Phalearae on Standards

[M. Demetrius]

There do seem to be different sizes of discs on various sculptures and coins, and sometimes different designs for the disc part itself, with various types of raised and lowered rims. I begin to think that it's not crucial exactly how the raised ring is configured, as long as it follows one of the shown samples.

Rado, your discs. Did you cast them, or raise them with hammers? Looks like you started with flat metal and worked it into shape. Am I right?