The 'obverse' image is very much off-centred, and may initially
prove difficult to firmly determine.
However, your
reverse image (presently inverted) quite clearly
shows an
amphora with the letters: A - Θ/E
Your coin is therefore from
Athens, and now the
obverse can
subsequently be narrowed down to a couple of possibilities:
Cicada - this appears to be most unlikely (no legs, wings, etc.).
Apollo - does the image appear to show the back of a
head?
The latter appears to be the most likely possibility, given the
image and information to hand.
If so, then it is
Kroll,
Agora XXVI 105.
I could not immediately locate any online images, and so I
had to resort to grabbing a screen-shot of a 1999
auction catalogue which
had a large
collection of Athenian bronze
coins as one of its features.
This may at least point you in the right direction.
Walter
Holt