Photo(s) please. Include butt, joint, and a close-up of the "Pr" logo/symbol you described.
I am guessing you already saw this other post about "Pr" pool cues... No photo there either.
Can't really help without a visual.
Does this one look like yours? Is the logo / "pr" symbol the same? If so, it is an import cue. Apparently it is nearly impossible to find any info on these. The name of the cue is a Penn-ray pool cue, and apparently they were made in the mid to late 1980's, but I have not been able to verify that. Someone also thought they were made by Adam cue in the 1980s:
This is most definitely a blank produced by Adam Cue... They had a lot of one-off name brands in the 1980s
Update: Made in Japan, on behalf of a company called Penn-Ray Sutra Corp, P.O. Box 1088, Bensalem, Pa. 19020.
"Penn-Ray Sutra Corp." was a trade name owned by the WICO Distribution Corp, of Illinois. They made pool cue blanks with "WICO points", among other pool cue parts.
Also known as:
Penn -Ray International Corp.
1705 Winchester Rd, P.O. Box 390
Bensalem, Pennsylvania 19020
(Parts & supplies for electro -mechanical & electronic games and for phonograph, also billiard table parts, accessories & supplies.)
Penn-Ray Sutra Corp.
31 61 -A Slate Rd. Bensalem, PA 19020
(billiard supplies 8 accessories, tournament soccer foosball tables, parts, accessories 8 supplies for the coin machine, amusement & billiard industries)
One just sold on eBay for $101 USD... pretty banged up: