I would like to share with you this SÉRIE 7 coin from Arados which i have dated as year 85 (175-174 B.C). There are four types from era date 85, three of which have varying mint marks/Phoenician letters on them and one without any mint mark at all. My coin has letters ayin and taw in right field, ayin is extremely hard to see with the naked eye but with a magnifying glass is just visible above the prow, nearly of flan. Taw is much easier to make out, if you first locate what appears to be the letter A behind Poseidon legs and then pan right, taw can be seen very close to the coins edge. I have managed to track down four coins with the same letters, two can be found in ANS and two in BNF.
I also believe that i have found a matching reverse in Duyrat 2005 dated year 84 (see image 2), this coin warrants further study and perhaps would be re-dated year 85.
Final attribution for my coin (see image 1)
Phoenicia, Arados 175-174 B.C
AE 21.41mm (Thickness 3.20mm), weight 7.69g, die axis = 12h (0 degrees), denomination B.
Obverse: Turreted head of Tyche right, braided ponytail, palm frond behind.
Reverse: Poseidon seated left on prow of galley left with (Ἀθηνᾶ Πρόμαχος) Athena figurehead, holding wreath in right, trident in left, Phoenician letters ayin (`) and taw (T) in right field, Aradian era date 85 below.
Duyrat 2005 Pg.66, No.2242-2245 ; HGC 10 Pg.22, no.78.