The Antoria trademark was a brand name used by a UK importer for guitars produced by Guyatone. Guyatone began building guitars in 1933, and started producing solidbody electrics in the late 1950s. While the original Antorias were cheap entry-level models, the quality level rose when production switched to the same factory that was producing Ibanez guitars. Later, the trademark was applied to solid and semi-hollowbody guitars built in Korea. Source: Tony Bacon and Paul Day, The Guru's Guitar Guide.
Also see GUYATONE. Instruments previously built in Japan in the 1950s, later switching to Korean-built models.