Leo, Cherson

The reverse prototype for Leo is illustrated below and the reverse prototype for Verina is illustrated further below.
Trivero, et. al. note that Korzhenko studied hoards and single finds from Crimea and found that in the late fourth century almost all coins were AE2s (758 out of 771, 98.3%) and only 9 were from before Gratian [p. 6]. Clearly these two new types, and those of Theodosius II and Valentinian III, were revivals of the AE2s in circulation. "The average weights of this issue appears aligned with that of the AE2 of the former Theodosian era." [p. 18]

Leo I, 457-474
Type ES3
20mm. 6:00. 4.34 grams
Obverse legend: DN LEO PERPET AVG
VIRTVS EXERCITI
Mintmark: CONE
RIC X 652 "R5", page 291
Hahn 5th C. 23
Sear V 21434

Leo I, 457-474
Type ES3
20 mm. 6:30. 4.68 grams.
Obverse legend in the dative case: DN LEONIS PP AVG
VIRTVS EXERCITI
Mintmark: CONE
RIC X 654 "R4" page 291
Hahn 5th C.
Sear V 21434

This coin: Trivero et al., p. 20, upper right.

Leo I, 457-474
Type ES4
DN LEO P - RPET AC
[note the different spelling of the obverse legend omitting the "E"]
SALVS R-PVBLICA
CON
20 mm. 6:00. 4.06 grams.
RIC 663 "R4".

Leo I, 457-474
Type ES4 variety.
DN LEO PE-R PET AVG
SALVS RE-PVBLICA (spelled correctly with an E, which none in RIC do)
Reverse emperor nimbate (only RIC X 657 has the emperor nimbate, but that one has legend SALVS REI-PVBLICAE. Its mintmark is CON like this one.)
22 mm (Note the large rim). 6:00. 3.77 grams.
This piece has RIC legend "L1", with AVG spelled correctly, which is on 658 and 661 however there the reverse is (mis)spelled R-PVRLICA.
I propose that this excellent piece was struck by the prototype die, before the degeneration seen on every other known example set in.

Verina, wife of Leo I
Type ES5 variety
20-19 mm. 6.52 grams.
AEL VERINA AVG
Reverse legend: SAVS [sic] REI-PVBLICAE
Mintmark: CONE
RIC X 655 variety (missing "L" in SALVS)

Reverse prototype for Leo. The VIRTVS EXERCITI reverse type of Leo is found on coins of Valentinian II, Theodosius I, and Arcadius with the same legend and design. The SALVS RE-PVBLICA type of Leo has the same design but a different legend.

Theodosius, 379-395
AE2. 24-22 mm. 12:00. 4.59 grams.
VIRTVS EXERCITI
CONSB

RIC Constantinople 83b variety (officina B is unlisted for Theodosius. B is usually for Valentinian II).

Common for Valentinian II, Theodosius, and Arcadius. Extremely rare for Magnus Maximus.

Arcadius
AE2. 23 mm. 5.87 grams.
VIRTVS EXERCITI
Note: Constantinopolis spells out "Augustus" (which is unusual) and
spells it as "AVGVSIVS". (The other mints use PF AVG.)
I think it reflects local pronunciation, which was changing.
23 mm. 5.87 grams. 6:00
RIC Constantinople 83c2

Reverse prototype for Verina.

Aelia Flaccilla, wife of Theodosius I
This reverse has the same legend and same design as the coins of Verina, however the coins of Verina have much poorer die-engraving.

This example:
24-23 mm. 6.31 grams.
RIC IX Constantinople 55

Reference:

"The Chersonese Copper Coinage between Roman and Byzantine Empire" by A. Trivero R., A. Gennari, A. Ortu, M. Cecchinato, and V. Zarkho. It is available from Academia.edu here:
https://www.academia.edu/34901540/The_Chersonese_copper_Coinage_between_Roman_and_Byzantine_Empire_by_A_Trivero_R_A_Gennari_A_Ortu_M_Cecchinato_V_Zarkho
It considers coins from Cherson through the time of Justinian.

ES3 19	AE2 bust right	VIRTVS EXRCITI [sic] emp rt. with standard and globe foot on captive	A-- So1.1	Sear V 21434	RIC X 652-4 Constantinople	H23a-b Pl. 9 Con	DO LRC 560	Hahn "457-462"
ES4 19	AE2 bust right	SALVS RPVBLCA [sic] emp rt. with standard and globe foot on captive	A-- So1.2-3	Sear V 21433	RIC X 657-664 Constantinople	H24a-b Pl. 9 Con	DO LRC 561	D. Markov: "Perhaps the high-quality ones really are from Constantinople." Hahn: "462-467"
ES5 19	AE2 Verina bust right	SALVS REIPVBLICAE, Victory seated right, inscribing chi-rho on shield.	A-- So--	Sear V 21467	RIC X 655-6 Constantinople	H25 Con pl. 9	DO LRC 598	Hahn "457-462"