Trajan. AD 98-117. Æ Sestertius (34.5mm, 24.28 g, 6h). Rome mint. Struck AD 107-110. Laureate bust right, slight drapery / Single-span bridge across river; arched tower at either end; boat in river below. RIC II 569; Woytek 314bC3; Banti 263. Fine, brown surfaces, some green and red deposits, areas of roughness.
The bridge on the reverse of this coin has been 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.