Sorry I'm rather late to the party.... I've been away a while... If your still
undecided , Im 95% certain you have a Celtic
imitation... Genuine drachms generally weigh a little over 4 grams, and the sticking up hair on the obv.
give it away...
If your still
interested, post a pic of the obv.
from an angle, I think a different view could reveal enough detail to be sure..