Denomination : AE 19.
Date : 3rd to 1st century BC.
Reference : Sear Greek - 1685, BMC-4, Anokhin Olbia-190.
Size : 18.5 x 19.3 mm. Weight : 7.56 grams.
Grade : VG/F with a very dark green-brown natural patination.
Obverse : Head of the river-god Borysthenes facing left.
Reverse : Battle-axe and bow in it's case, with OLBIO to the right (the late O is just off the flan) and a monogram to the left.