Ah, the UK Wackys! One of my favorite side-chains to the original 1-16 sets. It was so fun researching these way back when, but somehow I let go of most of the examples I had. I think I had the first known compete set of the 1st & 2nd series stickers that could be verified as coming from the UK packs, at least over here anyway. Really miss that set & probably should have had it PSA graded as they were all pack-fresh. And I had that UK box proof that came from the big warehouse find, too. Can't even remember where any of that stuff ended up. I still have an Irish set, but none of the full and empty boxes I used to have. And I don't have the rare UK/Irish test pack either. I had fun actually trying to track down UK & Irish Wackys IN London when I was there in '99... but didn't have much luck beyond getting a few more from Paul that year. Apparently there was a big collector over there who was said to have tons in his warehouse, but I couldn't ever get a solid lead or any contact info. THAT would have bee a fun find!
How many collectors have you run across over there who have (or know of) Wacky Packages? I found a total of TWO at a huge card & comic show when I was there. So, I'm guessing they didn't really have much success there in the 70s/80s.