This charming vintage piece is a "Cutie-Kitten" nursery egg cup and saucer/plate set made by Spode Copeland in England.
Here are the key details about the piece based on the maker's mark and design: Manufactured by Spode Copeland England, a renowned historic pottery firm known for its fine earthenware and bone china.
Pattern Name: "Cutie-Kitten", featuring whimsical, anthropomorphic animal illustrations popular in mid-20th-century children's tableware.

Age & Background:
Production Date: 1957.
Design Context: Designed by Christopher Boulton in 1957 for Spode Copeland, the "Cutie-Kitten" pattern (ref: S.3243) was featured on Spode's mid-century "Tricorn" shape (noted for its rounded-triangular rim profile).

There is a chip on rim - see photos