RIC 460 (Theodosius II, R3) and 461 (Valentinian III, R4), no photo in RIC, p. 276.
"The large bronze of Valentinian III," by Korshenko, Gorshkov, and
Holmes,
in NC 1995, p.271-275, and plate 48 (two photos and two line
drawings).
"most of these coins were in bad and very bad condition. Usually only
a few characters and a part of the type were visible." "There are more
than 150 specimens ... known to us from Cherson." Constantinople mint
mark,
but all of known provenence were found near Cherson.
As the RIC rarities demonstrate, this type was very rare outside of
Ukraine at the time RIC X was written. Many have appeared since then.
However, the observation that most are in "bad and very bad condition"
is still valid.