FERDINAND ZERRENNER (Pforzheim)
Art Nouveau Brooch
Gold Enamel Diamond Pearl
H: 3.6 cm (1.42 in)  W: 3.4 cm (1.34 in) 
Marks: '750' & French import
German, c.1900
Fitted Case
Literature: cf. Jugendstil-Schmuck // Art Nouveau Jewellery from Pforzheim, Fritz Falk, 2009, illustrated p.318 cat no Z2 & cover
cf. European Jewellery, From Historism to Art Nouveau, Pforzheim Jewellery Museum, 1984, p. 149, cat. no. 230 & 231
Das Schmuck Buch, Rucklin, Leipzig 1901, p.248
Ref: 4800