Vintage Black White Shell Cuff Bracelet and Ring Carved From Single Piece

Beautiful cuff bracelet for a small wrist and a matching ring. Dark blackish brown, creamy iridescent off white, and specks of gold. Cuff measures approximately 3" x 2 5/8" x 1". Cuff opening 1 1/8" Ring measures approximately 7/8" x 7/8" x 7/8" wide. Ring is about a size 8 according to a ring size chart online. It is not perfectly a circle, see pictures.