Well, I'll give it a little perspective. In the late 70s, there really weren't too many premiere cuemakers. Gus Szamboti, Dan Janes, Tim Scruggs, Ernie Gutierrez, Bill Stroud, Bill Schick, Bert Schrager, and a few others.
It wasn't the crowded market that it is today. So, value? For someone wanting to play the cue, probably not that much. On the other hand, a collector of historical cues, it would be higher value. Hard to place.
But it's good to see these gems now and then.
All the best,
WW