Should I Be Suspicious?

Is it just my imagination or could there be some fakery going on here?





These two coins are being offered by the same seller at the same time. At first blush they look like different examples of the same type. But when I look closer it seems to me that the same set of dies for obverse and reverse was used to produce both coins on different flans. The example on the left is well centered; that on the right is shifted up on the reverse. The example on the left has had some of its high points of relief shaved down, but the structure of the design has all the parts in the same relative positions on both coins. For example, the lettering on the reverse appears in the same positions relative to the back of the eagle, and in the same proportions on both coins. The hair styles on the obverse are identical, the skewing of the mouths of the figures correspond, the size of the eyes in relation to the nose and width of the faces. All match.

I think these coins are of modern manufacture. What do you think?

Edit: I neglected to mention that they are being represented as triobols at weights in line with an Attic standard, but the standard for these pieces from Istros was not an Attic standard, so these weights do not correspond to a normal division of the stater.