Mosconi used the famous Balabushka for his exhibitions and senior tournaments, I would say, from the late 60s to the early 80s.
A little footnote is, when he and Jimmy Caras played straight pool at Horsham, Pennsylvania, Mosconi went back to his Rambow that he ran the 526 with. Other than the basement tapes, I think this was Willie's last public performance.
As for both cues, pretty sure I see them in the Glenn video.
All the best,
WW
If some on AZ are correct, that Glenn collection will eventually be worth a fraction of what they paid for it. Historically, of course, you can't remove the significance, but financially it may well be a disastrous investment.