Titles read: "Now Pathetone Presents - That Popular Trio of Entertainers THE THREE VIRGINIANS".
London, probably Pathe Studio.
Various shots of singing trio The Three Virginians in white tuxedos performing 'Roll Out The Barrel' around a grand piano (one of them plays it). Brief shots intercut show a troop of soldiers marching along a country road and singing along to the song (mute). The trio do an interesting bit of syncopation in one section of the song.