as Teisco. But no definite facts yet...Matsumoku was a factory that produced some very nice guitars...this from wikipedia..."Matsumoku produced guitars, or parts of guitars, for Vox , Guyatone, FujiGen Gakki, Kanda Shokai ( Greco ), Hoshino Gakki ( Ibanez ), Nippon Gakki ( Yamaha ), Aria and Norlin (parent company of