Dear ecoli,
wonderful coin!
As your coin is in such strong condition: You may be aware that
Johannes Nollé, Beiträge zur kleinasiatischen Münzkunde und Geschichte 6-9, in: Gephyra 6 (2009), pg.7-99 (zum Monument von Selge und zur Brücke von
Antiochia ad M.), pg. 44-47, argues that what we see immediately below the arches of the bridge are actually phalloi which represent the virility of the river Maiandros. As he bases
his argument on a rather more worn example (
https://www.acsearch.info/search.html?id=688923), would you agree with
his theory based on your coin?
Kind regards
Thilo