Together with a certificate of expertise from the Paolo Buffa Archive.

Each: 19 x 5 1/4 x 3 3/8 in. (48.3 x 13.3 x 8.6 cm)

From the Catalogue:
The present model was exhibited at the "Gallery of Modern Lights" at the IV Triennale di Monza, 1930.
—Courtesy of Phillips