Help needed

I've been close to figuring this one out, but OCRE doesn't seem to have any with an SIS mint on it. I'm certain it's a Constans, maybe an AE3, and the mint Siscia. Sorry guys I'm really trying before I come here. There's similar backed ones, but they don't have the soldiers, but the two winged Victories.
This coin was a chunky mess, so seeing this much detail was really awesome for me.
Thanks in advance!

 

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Try Wildwinds.com, there are some Siscia mint coins there under Constans.

 

Looks like this to me:

Constans AE4, Siscia, 346-348 AD. CONSTAN-S PF AVG, rosette-diademed, draped, cuirassed bust right / GLOR-IA EXERC-ITVS, two soldiers holding spears and shields with one standard between them. Chi-rho on banner. Mintmark: Delta SIS. RIC VIII Siscia 87.

 

There are several examples from Siscia on OCRE. The problem is that the Officina and Mintmark are not/hardly visible on your example.

http://numismatics.org/ocre/results...acet:"Bronze"+AND+fulltext:GLOR-IA+EXERC-ITVS

 

Try RIC viii, p. 355, 103-4.

 

Agreed, I thinks it's 87 also. http://numismatics.org/ocre/id/ric.8.sis.87

I think the exergue is either ASIS or BSIS (to my eyes). The officina letter might have been clogged on the die a bit and weakly struck.


https://www.acsearch.info/search.html?id=1187069
(Exergue: ΔSIS)

 

Took a look under my microscope and it looks like ASIS

 

Thanks for the help again guys, you're all awesome!

 

for many fourth century coin types adn extensive antoniniani series; try this: http://www.catbikes.ch/coinstuff/coins-ric.htm