Trajan. AD 98-117. Æ Sestertius (32mm, 6h). Rome mint. Struck circa mid AD 107-110. Laureate bust right, slight drapery / Arched, single-span bridge with six posts across Danube River; single-bay arches at either end; boat sailing left in river below. RIC II 569; Woytek 314bC; Banti 261 (same rev. die as illustration of Banti 259). In NGC encapsulation 5771974-025, graded AG, marks, damaged.
The bridge on the reverse of this coin is generally thought to be that constructed across the Danube by Trajan's architect, Apollodorus of Damascus, in AD 104. There is good circumstantial evidence for this. The date range for this coin's issue is closely contemporary with the date of the bridge's construction and would fit in well programmatically with those war-related issues of the same time frame.