Jochen, your educational posts enlightening us about the details on
ancient coins are no bother at all! From a purely aesthetic point of view, I'm more inclined to see the structure to the right on the
exergue line as just
Nike's other foot rather than as a
fish or anything else.
I've seen so many mundane
exergue lines on both ancient and modern coins that I actually love the way the die cutter has thickened the
exergue line at both ends lending it the same aesthetic appeal as
Nike's intricately rendered clothing. I also love incidentally the way the die cutter has furrowed the laureate
bust's brow on the
obverse complemented by the downcast eye lending it a look of concern.
I'm inclined to agree with Joe's observation that the reason the right
side of the
exergue line appears different from the left
side is down to die wear. You can see the same granulated die wear on
Nike's wing to the right. True, it does veer away from a straightforward ground-line but it's a nice artistic effect all the same.
I don't know if
Nike has any
maritime connections but I can't but
help notice the wavelike formation on the laureate
bust's
cuirass and the ground-line's resemblance to a ship's curved prow. Perhaps I'm reading too much into that and giving the die cutter unwarranted artistic licence.