As for the stuff behind the
head, mixed up with the laurel ribbons, my
Macrinus at Nicopolis also has that, which is why I linked to it. It is in fact unusual to have some shown in back as well, and I thought even more so in
Moesia Inf. And yes, I read your Ant Pius as 3/4 from behind.
The convention is NOT to call these busts, but Heads with a
bit of drapery on the far shoulder. The ones that are cut off in a sort of potato-chip (British, crisp) wavy shape are called Heads. As time passed, in large
sculpture, more of the shoulders and pectorals were included.
In describing coins, it is conventional to use
Bust for fully draped, or
cuirassed and draped; also, as a rule (there are
plenty of exceptions) these imply a full-length statue, rather than a 'library shelf'
head with more or less of the shoulders. The clothed
bust is just chopped off, representationally, often terminated by the beaded
border itself.
What is conventionally called a
Head is what a 19th c. gentleman would call an Antique
Bust (for a
library shelf, or the like). By the end of the
Julio-Claudian period, the wavy, ruffled artistic termination was well established; it is decorative besides signifying an independent
portrait of the
head and not too much more. In
sculpture, there is the nude heroizing kind (like the Br
Mus Trajan) as well as that (the draped and
cuirassed kind) with the cloak swooping around so that the cut-off doesn't look so arbitrary.
It would be logical to call
all the Imperial ones 'busts', since in
sculpture the nude heroizing one is the quintessential Antique
Bust, as distinct from a
portrait thought of as
part of a
portrait with a body. BUT IT WOULD NOT BE CONVENIENT. We'd have to limit 'head' to
Republican ones. I mean, it isn't the presence or the absence of a
bit of drapery that makes the British Museum
portrait of
Trajan, probably
posthumous (though the polish is from its being a Townley marble, I think), a
portrait bust but the fact that it was designed just as we have it. The ruffled cut-off on the coins is abstracted from the appearance of such a
work seen in
side or 3/4 view.
I have fallen into the habit of capitalizing
Head and
Bust, to somehow distinguish them from the regular English common nouns (not to imitate
German usage!).
Pat L.