Vintage '70s Boy and Girl Black Ceramic Head Sculpture Set

Vintage '70s boy and girl black ceramic head sculpture set. Glazed glossy black, boy is more of a blue undertone, girl has more of a green tone. Both have a little wear to the finish, have a gassy effect in spots. Inside they are dated 12/25/79 and hand signed. Each measures approximately 7.5" tall, 4.5" wide, 5" deep.