

hello! This is my first time posting. I am new to DIY.
We have recently moved into an old Queenslander and the tap to the bath is leaking. Please see photo as to what it looks like.
My research suggests I need to replace the tap valve. I have unscrewed the handle and please see photo to see how far I have got.
Before I cause carnage, can you advise me on what the next step is? Does the metal bit my finger is point to just unscrew to reveal the valve?
Thank you!