[tet68]

After the sack of Jerusalem by the romans various plunder was carried back to Rome as is depicted carved on Trajan's column but I don't believe the Ark is pictured.

[jjotto]

The most ancient Jewish manuscripts indicate THE Temple Menorah had straight diagonal branches rather than rounded ones.

The menorah on the Arch would have been some secondary creation, not the original design. Perhaps the original was hidden, like the Ark. But the one taken to Rome is still pretty cool.