6 - Biconical bottle

Biconical bottle Germany, first half of the 16th century H. 13.5 cm; diam. 7 cm Provenance: Private collection, Mainz, since 1970; Acquired in 2024 by the current owner. Comparative bibliography: Ignatz Schlosser, *Das alte Glas. Ein Handbuch für Sammler und Liebhaber*, Braunschweig, 1977, p. 79, fig. 69. Brigitte Klesse and Gisela Reineking-Von Bock, *Glas. Katalog des Kunstgewerbemuseums der Stadt Köln*, Cologne, 1973, p. 93, no. 130. Margrit Bauer, Gunhild Gabbert, and Anneliese Ohm, *European and Non-European Glass*, Frankfurt am Main, Museum für Kunsthandwerk, 1980, pp. 98–99, nos. 205 and 206. Erwin Baumgartner and Ingeborg Krüger, *Phoenix from Sand and Ashes: Medieval Glass*, exhibition catalog: Rheinisches Landesmuseum, Bonn / Historisches Museum, Basel, Munich, 1988, p. 420, no. 527. Willy van den Bossche, *Antique Glass Bottles: Their History and Evolution (1500–1850). A Comprehensive, Illustrated Guide*, Woodbridge, 2001, p. 240, pl. 189. David Whitehouse, *Medieval Glass for Popes, Princes, and Peasants*, exhibition catalog: Corning Museum of Glass, Corning (New York), 2010, pp. 207–209, nos. 97, 98, 99. This biconical flask is made of yellow-green glass. The lower section ends in a hollow rim, formed by glass drawing. At the junction with the upper section—which is conical in shape and resembles a roof—there is an internal drawn ring. The very narrow neck ends in a thickened lip. Condition: The glass shows slight opacities and some traces of surface deterioration.