This is a coin of Tiberius from the magistrate Dioskourides, featuring Zeus Laodiceos holding an eagle. There are several examples on both Wildwinds and RPC, but none of them have the large letter "N" (or, I suppose, could be a sideways "Z") in left field. Does this N mean anything, or is it just a field mark?
Struck under Tiberius; probably the head is Augustus. Maybe the letter on the left is a monogram. Mine has one on the outer right: Phrygia,Conventus Kibyra, Laodikeia ad Lycum (today near Denizli, Turkey) 14 - 37 AD, Dioskourides magistrate, struck under Tiberius 18 x 19 mm, 6.660 g RPC I 2906, 2911; SNG Copenhagen 547, 549; BMC Phrygia p. 301, 141, 143 (as Augustus) Ob.: ΣΕΒ(ΑΣΤΟΣ) Bare head right Rev.: ΛΑΟΔΙΚЄΩΝ - ΔIOΣKOVPIΔHS TO ΔEVTEPON Zeus Laodikeios standing left with eagle and staff, KOP monogram outer right
BMC (and also Babelon, Waddington 6263) assigns this type to Augustus while RPC I assigns it to Tiberius but notes the difficulty in determining if it is a coin of Augustus or Tiberius. It certainly looks like Augustus, but many portraits of Tiberius intentionally exaggerate his resemblance to Augustus. RPC's attribution of this issue to Tiberius is based on the "mature portrait", the "second issue" of this and another magistrate, and the use of "SEBASTOS". No city in southern Phrygia issues "SEBASTOS" coins with "TIBERIUS" - it is always "either-or". Also, unless the "SEBASTOS" coinage of southern Phrygia is attributed to Tiberius, a huge gap in coinage would need to be explained some other way. Together, these arguments make a reasonable case. (See RPC I, pp. 376 and 475.)
