I think we may have this discussion before, but I don't understand how some scholars can fit the Spes Pvblic issue, which is so tremendously rare, into the same series with a group of coins that are only moderately scarce? I would have to assume they were struck for a reason other than general circulation, or at best, were only trial pieces.
I agree it doesn't fit with the others. The
bust type shows it ended as they were starting, and the focus is clearly dynastic rather than (if at all) victorious. Personally I tend to attribute it's extreme
rarity to it having been withdrawn early, perhaps due to being
Crispus related.
It should also be noted that the Dafne issue must be excluded from the group due its almost exclusive use of two other bust types, with the occasional use (rarity implies erronous) of the bust seen on these. What does everybody think?
Constantine switched
bust type a few times from this point, and the
bust used on the coins merely reflects the date. The laureate
head disappears c. 326-327 to be replaced by the diademed
head c.327-328, to be replaced by the diademed
bust (vs
head) c. 329, then finally we get the switch to the long haired diademed
bust c.334 (half way through the
Gloria Exercitus 2 standards
type, and hence the only
bust type for
his final
Gloria Exercitus 1
standard type).
This progression of
bust types occurs simultaneously at all mints (although only a few use the looking-up diademed variant), and is an easy way to approximately date the issues which span these transitions (e.g.
VOT XXX,
campgates) without any reference books. The
rarity of the diademed
head vs
bust in the Dafne issue would seem to imply that it started late in that
bust type, just as the other
Constantinople special issues were ending.
Ben