Bath \ Shower Diverter Lever Leaking

[cjnetrider]

Hi, I've just renewed most of the washers in my mixer but remain with a leak from the lever that diverts the water to the shower head. Does anyone know how these come off (if at all)? I can't see any screws or alan key slot and i've tried turning but it seems hard and I don't want to break if I can avoid
Thanks in advance!

 

[jtsplumbing]

Looks an old unit, any idea what make it is ? some of these were pressed in and cant be striped down, but possible that the leaver will unscrew , may be Left hand thread , anything at rear of tap ?

 

[cjnetrider]

Looks an old unit, any idea what make it is ? some of these were pressed in and cant be striped down, but possible that the leaver will unscrew , may be Left hand thread , anything at rear of tap ?

Hi, and thanks for the reply!
It is an older unit though unfortunately no idea of make. As for unscrewing there is some play both ways, but i've been uneasy using a wrench incase of it snapping. Can't seen any screws behind any of the taps, just the usuals on front to remove the spindles.
Here's another pic

 

[jtsplumbing]

Hi, and thanks for the reply!
It is an older unit though unfortunately no idea of make. As for unscrewing there is some play both ways, but i've been uneasy using a wrench incase of it snapping. Can't seen any screws behind any of the taps, just the usuals on front to remove the spindles.
Here's another pic
View attachment 26671

That looks like Pegler Taps and Proberly are if they have lasted that length of time and good quality chrome, You could try contacting Pegler send them a photo they may B able to help.