OTO Melara's Vickers and Italian origins

Does OTO Melara have Vickers ancestry, and where did OTO's name come from?

Yes. A Vickers joint venture became Vickers-Terni, and the 1929 Odero-Terni-Orlando name supplied the abbreviation OTO.

A Vickers joint venture with Italian steel and shipbuilding interests became Vickers-Terni. The 1929 Odero-Terni-Orlando name supplies OTO's abbreviation. The company's gun-making origins connect British and Italian industrial development. Several subsidiary names remain unclear, preventing identification of every participating firm.