I believe it's used to advertise the Big Apple nightclub seen in the picture.
Once again a sad fate for a nice aircraft; tried one once; first time I'd seen 460kt ias on the clock, in fact first time I'd seen anything over 390 indicated; pig to turn though, I found the best way was stand it on it's wingtip and pull the pole back. My driver pulled 5.5 g through a loop; alright for him he had a g-suit - I greyed out!
Did a practice 1 in 1 into Boscombe; they glide amazingly well!