If somebody was going to counterfeit Kamakas I wouldn't think they'd choose the ones made under license in Japan. They were decent ukes from what I've heard, but not as valuable as a "real" Kamaka...
It is a Kamaka Keiki made in the 60's....Kamaka sub contracted them to be made in Japan at that time...Keiki means children in hawaiian...hence it is sopranino size...