PROFESSOR VITTORIO DONÀ FOR S.A.I.A.R. FERRO-TOSO & C., CIRCA 1932

cf. XVIII Biennale 1932, 1932, Exhibition catalogue for the XVIII Biennale, p. 184 for a discussion of the vases exhibited and p. 221 for an illustration of a vase with similar thick walled optical technique; Franco Deboni, Murano '900, 1996, p. 52 for a variant of this model