Arrone thumb turn: removing?

[Allan]

I'd like to remove what looks like an Arrone (it's what's stamped on it) thumb turn from the bathroom door

It looks something similar to:

I can't see how to remove it. There appears to be a tiny threaded hole on one side of the thumb turn, but I can't see how that might help, and there's nothing else that seems to suggest it might help removal. Can anyone provide any pointers to removing it?

TIA

Allan

[Andy Burns]

No allen grub-screw in there?

[Bob Eager]

wc-thumb-turn-chrome/

Is there a tiny Allen screw deep inside that hole?

[Nick]

+1

[Mr Fuxit]

Phil L is correct, but you'll have to remove the grub screw as well, to allow the thumb turn to be removed.

[charles]

to do that you will probably need a very small allen key.

[Allan]

Thanks for all the pointers: I'll give it a go.

[Allan]

Sorted: No grub screw, but the outer circular plate/cover came off with a twist (not threaded) and exposed screws

Thanks for the help & advice.