I have a Castilla CS-9S. Inside label reads made in Korea. I got it as a hand-me down back in the mid '80s, but I think it is much older than that.

I am always amazed at how good it sounds every time I pick it up. I keep it at my in-law's house so I have a guitar to play when we go to visit.

So it looks like no one can find any info on these instruments! I was hoping to find construction info. It appears to be solid wood, though I'm not sure what type.

Lets all keep each other posted!