Æ 4		Æ 4
GRATIANVS		VALENTINIANVS  II
Obverse legends: HER, KYZ, ANT, ALE DNGRATIA  NVSPFAVG Dominus Noster Gratianus Pius Felix Augustus		Obverse legends: AQ DNVALENTINI  ANVSPFAVG SIS, TES, HER, CONS, KYZ, NIK, ANT, ALE DNVALENTINIANVSPFAVG Dominus Noster Valentinianus Pius Felix Augustus ANT DNVALENTINI  ANVSIVNPFAVG AQ DNVALENTINIANVSIVNPFAVG Dominus Noster Valentinianus Iunior Pius Felix Augustus
Reverse legends: VOT / X / MVLT / XX

 

Æ 4		Æ 4
THEODOSIVS  I		ARCADIVS
Obverse legends: AQ, ROM, SIS, TES, HER, CONS, KYZ, NIK, ANT, ALE DNTHEODO  SIVSPFAVG Dominus Noster Theodosius Pius Felix Augustus		Obverse legends: ALE DNARCADI  VSPFAVG NIK, ANT, ALE DNARCADIVSPFAVG Dominus Noster Arcadius Pius Felix Augustus
Reverse legends: VOT / X / MVLT / XX

Note: there is a small Æ 4 of Theodosius II described in RIC X 419 (A.D. 408-423, uncertain mint).
It is probably wrongly assigned, it must be Theodosius I

MINTS

Æ 2, Æ 3

LVG, ARL, AQ, ROM, SIS, SIRM, TES, HER, CONS, KYZ, NIK, ANT, ALE

Symbols in exerge:

ROM		SIS, TES, ANT		AQ		ROM		ROM, HER

 

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Æ 4

AQ, ROM, SIS, TES, HER, CONS, KYZ, NIK, ANT, ALE

Symbols in exerge:

ALE

 

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DATE  OF  ISSUE
Æ 2, Æ 3
Years (A.D.)		Rulers		Mints
361 - 363		Iulianus II		LVG, ARL, AQ, ROM, SIS, SIRM, TES, HER, CONS, KYZ, NIK, ANT, ALE
Æ 3
Years (A.D.)		Rulers		Mints
363 - 364		Iovianus		ROM
Æ 4
Years (A.D.)		Rulers		Mints
378 - 383		Gratianus		HER, KYZ, ANT, ALE
378 - 388		Valentinianus II		AQ, SIS, TES, HER, CONS, KYZ, NIK, ANT, ALE
379 - 388		Theodosius I		AQ, ROM, SIS, TES, HER, CONS, KYZ, NIK, ANT, ALE
383 - 388		Arcadius		KYZ, ANT, ALE

 

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Additional information:
Helvetica´s Identification Coin Page, Esty Ancients Info & Cohen Online