Pl. III is a
VOTA PVBLICA coin, but Pl. IV indeed shows two Alexandrian issues, which I overlooked.
Alföldi refers to Laffranchi in Rivista ital. di num. 1907, who publishes an example, from the
Gnecchi Coll., apparently for the first time; not in
Cohen and unknown to Dieudonné who wrote an article on these anonymous pieces in 1904.
So the wlole
type must be quite
rare. I doubt you're going to be able to establish any differences in
rarity among the varieties, unless you can find a report of an
Egyptian hoard that contained a lot of them. They are all
rare.