I have Hagstrom acoustic guitar given to me by a family freind. I cant find any info at all about it online. I'd like to know its approximate value and year of make. Inside it says model: O120S and for serial number it says 052394. I'm guessing the 94 is the year of production but im not familiar with Hagstrom or there model dates.

Any help would be greatly appreciated

almost forgot: Cedar top, mahogany neck and sides. Rosewoode brideg and fretboard, 20 frets if any of this helps