Probably the oldest inscription with the words ROMA, preserved on the sword, which is dated back to IV century BCE. The “San Vittore Sword” was discovered in 2003 by Dante Sacco. The clue to making the assessment of sword’s origin was the style of engraving Macedonian stars on the sword. The inscription itself says:

TREBIOS C.F. POMPONIOS ME FECET ROMAI

Trebios Pomponios, son of Gaius, created me in Rome.