help identify roman coins

[viktorbg]

 

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[Mackaydon]

The middle coin appears to be a slight variation of this one:

[TD="bgcolor: #EEEEEE, align: left"] VALENS, 364-378. AE3, Siscia mint, 364-367 AD. Obverse: DN VALEN-S PF AVG; pearl-diadem, draped, cuirassed bust. Reverse: GLORIA RO-MANORVM; emperor dragging captive with right hand holding labarum in left.
Don........


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[Ammietuar]

The bottom left looks like a simple variant of a roman fibula, aka toga pin.