Just a total guess here, as we dont know yet if Vick's piece has the NSS info and number on the right corner.. but if it's not there, could this maybe have been some local piece that was done? Or a later, local RR?
Here's another difference from the full 3 sheet. The complete copy has NO GP ratings box, yet Vick's section does (and so does the US OS).
Plus the fact that Vick has 3 copies and all are just this bottom section. That seems curious, too.
And what if the top portions were never printed and, instead, they were issued like this to begin with. Hmmm. Gotta love the mystery, that's for sure.