EKO is an Italian Brand that was famous in the 60s. They made a lot of copies of American Guitars, and some original designs too.....
Re. bolt on neck guitars, i have an Aria Folk Guitar, which has a bolt-on neck...... here's a pic.....
Aside from the odd bolt on neck, this is actually quite a sweet sounding and playing guitar..... the obvious disadvantage lang is that the neck join is not so strong, so i cannot use strings heavier than 0.011s....... at the moment, this is strung with 0.010s, and the tone i get is very nice, but a little on the soft side when fingerpicking......
But Doc Arie, who set up this guitar, told me its quite good..... here's a shot of the compensated bridge he made......
The EKO is probably more than 20 years old now, so you can be assured na dried out na yung wood, which is all to the good..... Check the neck joint though, and examine the guitar to see if you have to reinforce the said joint or fill in some of the screw holes again...... One thing about old guitars, though, even the bolt ons, they used nice wood, as compared to the plywood on most acoustics today.......
Hope this helps.....
Chum