Art Deco Plywood Hanging Corner Shelf / Wall Bracket

Triangular, obelisk-form Art Deco hanging shelf in plywood (ca. 1940s, USA).
Four-stage storage option bracket with wire on the reverse for wall-mounting.
Very good, vintage condition with natural patina and wood crazing present consistent with age and use.
H: 28″ x L: 9.5″ x D: 5.25″