LEVINGER & BISSINGER
Jugendstil Brooch 
Silver, enamel & garnet
Length: 3.6cm Width: 3.3cm
Marked: ‘HL’ monogram ‘depose’ ‘900’
German. Circa 1900
Fitted case
Literature: cf. Schmuck in Deutschland und Osterreich 1895-1914,
Ulrike von Hase, 1977, page 229 & 328, catalogue numbers 731 & 732