Rare watercolour - Circle of Arthur Rackham / Aubrey Beardsley / Gustaf Tenggren Research Required

Research Requires to identify the Artist, Looks to be initialled AB … Very much like Rackham’s work… Someone must recognise the artist…Also see the reverse of card .. it looks victorian or early 20th century

Details

Size image (approx) = 7 x 5 inches

signed to the bottom right

Art in fair condition, some discolouration as per photos - it has some condition issues, but this is a rare work