Amalric WALTER & Henri BERGÉ (1870 - 1959 & 1870 - 1937) Butterfly pocket - circa 1920 Polychrome glass paste proof Signed "AWalter / Nancy 2 × 16 × 16.5 cm Bibliography : François Le Tacon and Jean Hurstel, Amalric Walter : maître de la pâte de verre, Éditions Serpenoise, Metz, 2013, p. 82 for a similar model. A pâte de verre "vide-poche au papillon" by Amalric Walter and Henri Bergé, signed - circa 1920 0.79 × 6.30 × 6.50 in. Amalric WALTER & Henri BERGÉ (1870 - 1959 & 1870 - 1937)