No idea of the others, but can confirm PAA one is genuine at least.....easily forged though. Comes from years of seeing him sign stuff... dot dot underlining flourish! ;-) :lol!: Yes quite common the bottom one ..in every copy of the 1968 booklet in fact 🤔and all exactly the same 😀 I know they are!...
oh hang on....yes....people who cannot pronounce the name Sub-bew-teo properly. (It's not Sub-boo-teo )
and scraping with a bent index finger instead of flicking, when playing.
That's about it....for now!