Thanks, jayman. That's very interesting and helpful background about Doug and Ray.
I still have the original dealer card, and the handwritten notation on the back reads “CR-190” and “472/116/750 P.” The shaft itself appears to be marked “116,” and my assembled cue measures 58 inches. Some of the notation may be starting to make sense, but I haven't figured out what “472” or “CR-190” refers to.
Do you happen to know how Doug recorded the specifications of the Schuler cues he brought back from Chicago, or what those numbers might mean?