linothorax and other white cuirases

[Youngster]

It's also worth noting that we can't assume every variation depicted by an artist represents some real and as yet undiscovered armor. Take for example this grave relief, attached. Should we assume that romans frequently wore turtle necks and argue whether bronze or leather makes a better turtle neck? Or should we sometimes just chock it up to an artist screwing up the neck on this piece, and leave it at that? You can't explain all of this stuff, and inventing solutions to problems in art is likely to produce even more speculative results.