These are called Matryoshka Dolls, Nesting Dolls or Stacking Dolls. These are called Matryoshka Dolls, Nesting Dolls or Stacking Dolls. There are 7 dolls in the nest . On black background the depictions of the artist of the theatre are on these dolls. The tallest one is 7 1/4 inches, the smallest - 1 inch.