Those belong to Ralph, just outside of London. My wife and I visited with Ralph for a day along with an old high school / college friend of mine and his wife. Here's (what I felt at the time was) an interesting story about those Jubilee's.
He ordered them on reputation alone. He had never heard them nor seen them. He contacted a few owners, made some questions and (I presume) on the reputation of PWK alone, ordered a pair blind and had them shipped to him in England. After they arrived, he was a bit mute on how they sounded.... I later found out he had contacted Roy and told Roy he didn't feel they had enough "tinkle". Roy didn't really know what to make of it other than perhaps Ralph might have lead ears.
We got there to visit and listened to his setup....but something struck me as strange. His top horns didn't have any bug-screen on them. I didn't say anything at first but looked closer. I even took this picture. You can clearly see a tube with some depth. The bug screen on my (and all) K402/K69's are right at the base of the horn, very visible.
I kept my mouth shut....came back home and after the vacation, I got ahold of Roy and emailed him the picture. He had an "Ah-Ha" moment.... asked that Ralph turn the speaker around to see if he had a K69 (tweeter) driver hanging off the back or, to Roy's guess, did he have a K1132/1133 (I forget) midrange driver hanging off the back?
Turns out he had the midrange driver. Since he was the third or fourth buyer of them for residential use, the guys at the factory hadn't yet become accustomed to swapping drivers and putting the K69 on there. Klipsch sent the wrong driver attached. Roy apologized, had a pair of K69's delivered to Ralph and Ralph had his tinkle restored.