I don't know what sort of rod Mr. Gar's father had, but back in the day there were both highend and 'affordable' glass rods, just as there is today with graphite.
But since I'm not a upper midwesterner
, I'll just say that your rod is the former (for a Southbend anyways), not the later.... rare too.
Fish it, it won't break. Fiberglass is a lot tougher than graphite