Attempting to id this vase for a friend, it is surprisingly light in weight and so I wondered if this was made with soda glass.
Nice slightly crude execution with wobbly fire polished rim, neat snapped pontil mark and a signature I am having trouble with.
It feels quite contemporary to me does anyone have any suggestions? (About the vase

)
Thanks, John.
Forgot to mention sizes, 15cm tall and 10 in diameter.