Sommerso glass:  aquamarine, green, blue, dark blue.
This is the model with 2 sections under the stick.
Da Ros designed other two: one with 3 and one with just 1 section.
Original label.

H. cm 33,5 - 13.2”

References:
MURANO GLASS THEMES AND VARIATIONS  (1910 – 1970) – Marc  Heiremans, ARNOLDSCHE (pag 180)
ITALIAN GLASS CENTURY 20 – Leslie Piña  (pag 40)
MURANO  - Carlo Bestetti , EDIZIONI D’ARTE (pag117)

Item location: Miami
Free shipping to the contiguous U.S.
More info upon request.