I don't want to chance pulling it off as I think they are bonded on, I will put some close up pic's on here over the weekend for you, also found this after a quick google not sure if it's correct though, it looks similar,

Found on merkurdepot.com but look at th f***ing price





Also read somewhere that the Fiat 131 & 128 had the same sunroof, don't know how true that is!!