Wedgwood Vase

Hi - Can aynone comfortably help me identify a vase I've picked up on my travels.
It's about 6" tall mostly deep pink/mauve lustre with a wide 2" white band around the top with a japanese style tea ceremony in black relief patrly coloured in green and ochre.
The lately mark underneath genuinely reads Imperail Porcelain with a crown and Wedgwood & Co
England.
As you know i've tried to look it up on the intranet wihtuot success.
Looks sort of 1930-ish. Terri