Claudius II coin

Hello, 

I recently acquired a coin that I believe is from the reign of Claudius II, however I can't find any pictorial matches on either Numista, Wildwinds, or OCRE. Based on the available descriptions, I believe this may be a dupondius described here on Numista:

N#290212

and here on OCRE

http://numismatics.org/ocre/id/ric.5.cg.123

but with what appears to be an “S” in the exergue as an officina mark rather than “ϵ”

I would love to hear from others more knowledgeable about these coins to either confirm my ID or giude me towards a different direction. 

Thank you! 

RJ  

Looking at more examples, I'm wondering if the right sie of the reverse figure might be a shield rather than branches. Still haven't found a good pictorial match though. 

Weight and diameter? Judging from the photo alone I'd say it's an antoninianus not a dupondius.

Something like, obverse, reverse and mint mark all fit: N#290315

I believe you are correct -Thank you cro321 !