Various takes on Russian Dolls. I just love them

they are fun cause they remind us that it is all a story within a story within a story within ........

also called:
Matryoshka Dolls - Matryona is a derivative of Russian female first name which is traditionally associated with a corpulent, robust, rustic Russian woman.
Or:
Babushka Dolls - grandmother or old woman.

Babushka, that's right, I was looking for that terms in my memory. Thanks!