Full Stater ID & Value Please

Hi could I get Id and value of my stater please

Compare here:

https://www.londoncoins.co.uk/?page=Pastresults&auc=168&searchlot=1057&searchtype=2

A possibility, perhaps you saw it yourself:

Celtic Britain, there exists the combination of detailed obverse and plain reverse and also the motive of horse and wheel.

Value? You won't find the value with eBay, i would try to use a professional grading service before i go to market.

Nobodys reply is better.