Roma › Impero Romano Nummus - Costantino II VOT V; Siscia 320-321 DC [opgelost]

Good morning everyone, I can't find this coin in the catalog. Weight 2.94 grams, diameter 19

 mm.

I sincerely thank anyone who can help me.  Giorgio

· Reverse legend: The inscription inside the wreath reads VOT V, signifying vows made for 5 years of Imperial rule. 

· Mint Mark: The letters at the bottom (exergue) indicate the mint where it was produced, namely Siscia (SIS). 

 A Roman bronze Follis (or Nummus) of Constantine II, the son of Constantine the Great, struck at the Siscia mint (modern-day Sisak, Croatia) around 320–321 AD. 

Obverse (front): The bust of Constantine II as a young Caesar, facing right. 

The legend reads CONSTANTINVS IVN NOB C, which translates to "Constantine Junior, Most Noble Caesar". 

 Similar - N#322789 

· Obverse
Head of Constantinus II right, laureate.

Lettering: CONSTANTINVS IVN NOB C

Unabridged legend: Constantinus Iunior Nobilis Caesar

Translation: The noble Caesar Constantine Junior

· Reverse
Vows on two lines within laurel wreath, lettering around, mintmark in exergue.

Lettering: CAESARVM NOSTRORVM / VOT  V / SIS

Unabridged legend: Votis Quinqennalibus Caesarum Nostrorum

Translation: Vows for the fifth reign anniversary of our caesars

Mint: Siscia, modern-day Sisak, Croatia 
https://en.numista.com/catalogue/mint.php?id=64