Sister's a pottery figure group by Mary Mitchell-Smith

Sister's a pottery figure group by Mary Mitchell-Smith, dated 1951, modelled seated, one holding a rose and whispering to her sister, who is holding a resting dogs lead, in shades of pale blue and green, another figure of a young girl in medieval dress probably a princess, and a young medieval boy holding his hat both by Mary Mitchell-Smith, and a model of a calf in the corn, incised signatures and title, 20.5cm. high (4)

the main figure group is incised To Joan Ralle my friend and patron, from Mary Mitchell-Smith 1951. The artist is listed as showing at the Arts and Crafts Exhibition Society held at the Royal Academy in 1946.