The Half-Siliqua denomination
Siliqua is the modern name given (without any ancient evidence) to small, thin, Roman silver coins produced in the 4th century A.D. and later.

Correspondingly, the half-siliqua is a coin weighing half of what the siliqua weighed.

When the coins were in circulation, the Latin word siliqua was a unit of weight defined as one twenty-fourth of the weight of a Roman solidus.
Half-Siliqua

(1) Ostrogoths 493-526
Obverse: Tiny head left facing Justin I with DIIVΛDƆSVIISIIΛ
Reverse: Chain wreath outer with VICTOII / SRM/ CON
Ref: Gennari type 4
(2) Ostrogoths 493-526
Obverse: right facing Anastasius with the text DИANAƧTΛ (…) VƧPΛ
Reverse: Theoderic monogram ИVICΓΛ+NROMΛ
Ref: None provided
(3) Ostrogoths 493-526
Obverse: Right facing bust text reads STISSΛNV
Reverse: Theoderic monogram used by Witigis and Baduila Text VΛΛVIT+IIYGNV
Ref: None provided
(4) Vandals 576-565
Obverse: Left facing bust of Justinian II(?) IIVADPSVISTSΛIIΛ
Reverse: Monogram of Justinian II
Ref: None provided