More interesting type of reverse with a bridge.
Roman Imperial
Trajan (98-117), Dupondius 107-110, Rome mint
Obverse: radiated and draped bust right
IMP CAES NERVAE TRAIANO AVG GER DAC P M TR P COS VI P P
Reverse: arched bridge, consisting of two stories, with arch surmounted by quadriga at either end, spanning river, boat sailing below, SC in exerque
SPQR OPTIMO PRINCIPI
Weight 13,47 g.