The mainly Welsh-languange Qualiton label was owned by Cwaliton Records (Wales), from Pontardawe, near Swansea. Records on the Qualiton label appeared from 1958 to the early '70s, latterly (from 1969?) as part of the Decca family. Most of its products were LPs, but it also put out a good number of 7" records. The vast majority of its 7" products date from the '50s and '60s, but at least one was released in the '70s Singles were numbered in the WSP-5000s, while EPs came in a variety of series: BEP-8000, QEP-4000, and (S)QEPD-100. Peculiarly, the company seems to have dedicated two labels to material licensed from Europe: Qualiton International looks to have shared the main BEP-8000 catalogue series, while Qualiton Off Beat singles had their own PSP-7100 numbers. Thanks to Robert Lyons for the info.