Complex sentence: Surviving examples of Lugers assembled under French supervision are usually finished in a distinct, grayish-colored blueing and bear a five-pointed star proof mark known to have been used by French Occupation authorities.
Split into simpler sentences: Surviving examples of Lugers assembled under French supervision are usually finished in a distinct, grayish-colored blueing. A few early manufacture pistols bear a five-pointed star proof mark known to have been used by French Occupation authorities.