Constantius II, Constantinople. Unlisted series.

Obv: DN CONSTAN-TIVS PF AVG, pearl diademed, draped, cuirassed bust right
Rev: FEL TEMP-REPARATIO, soldier spearing fallen horseman 
who is wearing a Phrygian helmet, reaching backwards
Dot in centre
Mintmark CONSA

RIC VIII Constantinople 135 var (marks), Rare

Sold on ebay in December by amigocoins, Germany

Notes:
Although the CONSA with dot in centre is known, the thing to
note on this coin is the reverse break of TEMP-REPARATIO which, 
on Fel Temps of Constantinople was only used on those 
listed under RIC 135 and later. 

This is the fourth coin of this series which I have seen:
CONSA, CONS gamma, CONS delta and CONSI.

These coins appear to be part of a series which is not 
listed in RIC and which should be placed between RIC 135
 (dot at the end of the mintmark but no fieldmark) and 
137 (start of the dot M dot series).
dk