Celtic silver unit

 
Hi can anyone give me any information  on this Celtic silver unit. It is dished and has “VER” on one side and a horse on the other. The diameter is 13mm so smaller than usual I think.

I found this: Catuvellauni tribe, where coins of king Tasciovanus were the first to appear with the mint-name VER[ulamion] c. 20BC.

The obverse type could match with coins like these indeed:

N#228357

A possible match: https://iacb.arch.ox.ac.uk/id/abc.2625

Thank you for the id - I definitely think the tribe is match. 

I’ll see if I can get the coin a little clearer to see if there is a rider on the horse and dots around the VER.