Unknown coin , Celtic - Greek ??

[pinpoint]

Friendly ask for help to determine this unknown coin .
We don't know if it is Celtic or Greek
Diam. : 14 mm / 1,77 gr. / Bronze , found in The Netherlands
Front : manshead with open mouth , one tooth above and one tooth below
Rev. : Horse with 3 pellets above and letters below ( VV or M ???)
Any info is welcome

Greetz from The Netherlands , Pinpoint

New info for determination coming in :

Denier , Q DOCI / SAM F , Celtic tribe : Sequanen

[Altamura]

Please could you show us the reverse as well?

Regards

Altamura