Help With Constans Attribution

First of all, I think it's from Antioch. How does it look in hand?

I see AN gamma in exergue. But it's hard to make out.

I think it's similar to



Antioch

RIC VIII 126

Constans 20mm Æ2. 348-350 AD. D N CONSTA-NS P F AVG, diademed, draped, & cuirassed bust left, holding globe in right hand / FEL TEMP REPARATIO, Helmeted soldier, spear in left hand, advancing right, head turned to left. With his right hand he is leading a small bare-headed figure from a hut beneath a tree. The spear points downwards, between the soldier's legs, ANG in ex.

I can make out the gamma, but nothing before it, You may be correct about it being from Antioch, but there are differences on the reverse, i.e., the tree limbs and the figure being led out of the hut. One thing for sure about my coin and the one you posted, RIC VIII 126, the spear point is pointed downwards. This feature may help in distinguishing between coins.

Might be SMN gamma.