the more I look, the more I guess Tillis.
The date I don't understand, maybe a refinish date. I don't think Rocky made cues after the mid 80's, I heard he had a stroke around then.
But the simple butt work, Six simple, short, often non-veneered points, points with what looks like an 8-dash joint ring (his stuff often didn't "match") and of course the 18 thread pin.
Another question, that would lend only circumstantial evidence, but what does the but weigh? (Since you don't have shafts).
I've NEVER seen a light Tillis. I don't think I've EVER seen one under about 20 ounces, which would make the but roughly 15+. Of course weights would vary slightly with finish and wrap.
If it feels solid, I'd contact someone have shafts built, and the thing refinished. It's not worth a mint like it is, but should make a solid player with a neat "mystery history".
Harry Richards in Daytona is probably who I would contact. Yes, he's a buddy of mine, but he's also in direct "lineage" from Rocky, as he used to work with Wayne Gunn early on, and Wayne worked with Tilllis before that, or so I heard.
He also is used to doing those piloted shafts, as that was his standard for a long time.
Harry has a Tillis in his shop I have been trying to get for years. Kinda rough, but it's still simple and solid.
Let us know what you decide.