1. subjectkeywords vehicle: Carroballista
2. subjectkeywords vehicle: Carroballistae
3. subjectkeywords vehicle: Roman army on the march
4. subjectkeywords vehicle: Roman army on the march
5. subjectkeywords vehicle: Romans marching and making camp
6. subjectkeywords vehicle: Trajan receives a Dacian prisoner
7. subjectkeywords vehicle: At the camp
8. subjectkeywords vehicle: Carts being unloaded
9. subjectkeywords vehicle: Roman army advancing
10. subjectkeywords vehicle: Roman army on the march