Trajan, AE21 of Sillyum, Pamphylia. AD 98-117. 5.77 g. 

No legend, laureate head of Trajan right
CILLYEWN, Apollo walking right, playing lyre. 

RPC III 2708 (this coin); Righetti Coll. Sale V, 706 (ditto); Kapossy Bern 114. 

Extremely Rare.

With permission of Agora Auctions - Numismatic Auction 76, Lot 215, Sept. 2018.