Period had a large catalog of classical and operetta recordings, as well as jazz and popular music.
In 1956, Period sold its jazz LP catalog (10 disks) to Bethlehem Records.
Hungarian-born William Avar (né Vilmos Avar; 1899–1986) was president; Frank Stevens was general manager; Leonard Feather was head of A&R for jazz.
In 1950, Period was the American distributor for the French label L'Oiseau Lyre.
But Period also produced its own original recordings of artists that included Charles Mingus (1954), Jack Teagarden (1954), Ralph Burns (1954, 1955), Osie Johnson (1955), Maxine Sullivan (1955), Sonny Rollins (1957), Charlie Shavers (1957), Thad Jones (1957), Luckey Roberts (1958), and Danny Barker (1958).