Nummus RIC 194 di Constantius II ?

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Salve

Ho identificato correttamente questa moneta?
E se si qualcuno riesce a capire l'officina?
Grazie

 

Constantius II
RIC 194
Nummus 347-348

1,54gr
15mm

D/ CONSTANTIVS PF AVG -> Constantius Pius Felix Augustus (Emperor Constantius pious fortunate august)
   Rosette-diademed, draped and cuirassed bust right
R/ VICTORIAE DD AVGG Q NN -> Victoriae Dominorum Augustroum Que Nostorum - To the victory(ies) of our two Lord Emperors
   Two Victories facing each other, each holding wreath and palm branch; between them: a palm branch upright

Mintmark ??? SIS (Siscia)

Possibili officine:
OfficinaMark: A
OfficinaMark: B
OfficinaMark: Γ
OfficinaMark: Δ
OfficinaMark: ∈

http://www.wildwinds.com/coins/ric/constantius_II/i.html
http://numismatics.org/ocre/id/ric.8.sis.194