Among the first women potters recognised by the public as individual designers worthy of collecting were Hannah Barlow (1851-1916) and her sister Florence. The first women artists at Doulton’s Lambeth factory, they joined in 1871 and 1873 respectively.
Extracted from Learn Antiques Gazette | Terence Ryle

They occasionally worked together on their trademark sgrafito pieces, as in the case of the rare 13¼in (34cm) tall vase offered at Kingham & Orme (22% buyer’s premium) in Evesham on December 8 (above).
Decorated with sgraffito monkeys between pâte sur pâte birds and flowers, and with incised marks, it is the only known piece to depict monkeys by Hannah Barlow.
As such, it was bullishly estimated at £6000-7000, which proved very accurate when the vase sold at £6500.