Your pic links are coming up very tiny on my screen, but the headstock doesn't look like a K. Yairi I used to own.
Of course, back then they were being sold under the Alvarez name, so that could make a difference. Mine was from the early 70s.
Here are some pics:
Headstock:
Front:
Label:
BTW, there is an excellent tutorial on the forum for posting pics. Check it out if you need some guidance.