This type was given to Augustus (?) though the BMC attributed the L coin to Domitian. This attribution seems now the most likely: see M. Fox, Two numismatic puzzles from 1st century Sestus in B. Ciupercă (ed.), Archaeology of the first millennium A.D. IV. Nomads and the autochtonous in the first millennium A.D. (Istros, 2015), pp. 33-47 (and RPC II, 358A).